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HomeMy WebLinkAbout212-0207. Property Designation (Lease Number): 1. Operations Performed: 2. Operator Name: 3. Address: 4. Well Class Before Work:5. Permit to Drill Number: 6. API Number: 8. Well Name and Number: 9. Logs (List logs and submit electronic data per 20AAC25.071): 10. Field/Pool(s): Susp Well Insp Install Whipstock Mod Artificial Lift Perforate New Pool Perforate Plug Perforations Coiled Tubing Ops Other Stimulate Fracture Stimulate Alter Casing Pull Tubing Repair Well Other: Change Approved Program Operations shutdown 11. Present Well Condition Summary: Casing Length Size MD TVD Burst Collapse Exploratory Stratigraphic Development Service 14. Attachments (required per 20 AAC 25.070, 25.071, & 25.283) 16. Well Status after work: 17. I hereby certify that the foregoing is true and correct to the best of my knowledge. OIL GAS WINJ WAG GINJ WDSPL GSTOR Suspended SPLUG Authorized Name and Digital Signature with Date: Authorized Title: Contact Name: Contact Email: Contact Phone: PBU Y-19A Hilcorp North Slope, LLC 3800 Centerpoint Dr, Suite 1400, Anchorage, AK 99503 212-020 50-029-21857-01-00 15850 Conductor Surface Intermediate Liner Liner 8770 80 2673 2991 9071 4037 15835 20" 13-3/8" 9-5/8" 7" 4-1/2" x 3-1/2" 8770 41 - 121 40 - 2713 39 - 3030 2889 - 11960 11811 - 15848 41 - 121 40 - 2713 39 - 3029 2889 - 8820 8714 - 8770 None 520 2260 4760 5410 7500 None 1530 5020 6870 7240 8430 12165 - 15848 4-1/2" 12.6# 13cr85 36 - 11819 8917 - 8770 Structural 4-1/2" HES TNT Packer 11694 8630 Torin Roschinger Operations Manager Finn Oestgaard finn.oestgaard@hilcorp.com 907.564.5026 PRUDHOE BAY, PRUDHOE OIL Total Depth Effective Depth measured true vertical feet feet feet feet measured true vertical measured measured feet feet feet feet measured true vertical Plugs Junk Packer Measured depth True Vertical depth feet feet Perforation depth Tubing (size, grade, measured and true vertical depth) Packers and SSSV (type, measured and true vertical depth) 12. Stimulation or cement squeeze summary: Intervals treated (measured): Treatment descriptions including volumes used and final pressure: 13a.Representative Daily Average Production or Injection Data Oil -Bbl Gas-Mcf Water -Bbl Casing Pressure Tubing Pressure Prior to well operation: Subsequent to operation: 15. Well Class after work: Exploratory Development Service StratigraphicDaily Report of Well Operations Copies of Logs and Surveys Run Electronic Fracture Stimulation Data Sundry Number or N/A if C.O. Exempt: ADL 0028287 36 - 8720 N/A N/A 114 73 3442 82 18 177 761 875 236 280 N/A 13b. Pools active after work:PRUDHOE OIL No SSSV Installed 11694, 8630 STATE OF ALASKA ALASKA OIL AND GAS CONSERVATION COMMISSION REPORT OF SUNDRY WELL OPERATIONS Sr Pet Eng: Sr Pet Geo: Form 10-404 Revised 10/2022 Submit in PDF format to aogcc.permitting@alaska.gov Sr Res Eng: Due Within 30 days of Operations Digitally signed by Torin Roschinger (4662) DN: cn=Torin Roschinger (4662) Date: 2024.11.05 13:51:54 - 09'00' Torin Roschinger (4662) By Grace Christianson at 2:39 pm, Nov 05, 2024 DSR-11/6/24WCB 2-7-2025 RBDMS JSB 110724 ACTIVITY DATE SUMMARY 10/14/2024 ***WELL FLOWING UPON ARRIVAL*** (perforating) DRIFTED W/ 40' x 2 7/8" (3.16" RINGS) DUMMY GUNS 12,235' SLM W/ LRS ASSIST (see log) ***WELL FLOWING UPON DEPARTURE, PAD OP NOTIFIED OF WELL STATUS*** 10/14/2024 T/I/O=490/537/0 Temp=S/I (Assist SL with pump down) Pumped 102 BBLS of crude down TBG to assist SL in reaching target depth. SL in control of well upon departure. Final WHPS=0/530/0 10/24/2024 *** WELL FLOWING ON ARRIVAL *** (ADPERF) SI WELL W/ DSO, MIRU YJ ELINE PT PCE 300/3000 PSI AND FUNCTION WLV CORRELATE TO SLB VISION 30 NOV 2012 PERFORATE 2-3/4" 6 SPF, 60 DEG RAZOR CHARGES. INTERVAL = 12165-12196 FT. CCL - SHOT = 9.8, CCL STOP = 12155.2 FT. ALL SHOTS FIRED. RDMO YJ ELINE *** WELL SI ON DEPARTURE *** JOB COMPLETE 10/24/2024 T/I/OA= 500/500/0 Assist E-Line ( Pump Down) Pumped 5 bbls neat Methenol down TBG followed by 126 bbls of crude to Assist ELine getting to depth DSO notified upon departure. E-Line Left in control of well upon departure. FWP= 0/500/0 Daily Report of Well Operations PBU Y-19A PERFORATE 2-3/4" 6 SPF, 60 DEG RAZOR CHARGES. INTERVAL = 12165-12196 • Wallace, Chris D (DOA) From: AK, GWO SUPT Well Integrity <AKDCWelllntegrityCoordinator@bp.com> Sent: Monday, July 18, 2016 4:40 PM To: AK, OPS GC1 OSM;AK, OPS GC1 Field O&M TL; AK, OPS GC1 Wellpad Lead; AK, OPS GC1 Facility OTL; Cismoski, Doug A; Daniel, Ryan; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; AK, OPS Prod Controllers;AK, OPS Well Pad YP;Alatalo, Travis; Wallace, Chris D (DOA) Cc: AK, GWO DHD Well Integrity; AK, GWO Projects Well Integrity; AK, OPS FF Well Ops Comp Rep; AK, GWO SUPT Well Integrity; Regg, James B (DOA); Hibbert, Michael; Janowski, Carrie; Montgomery, Travis J; Munk, Corey; Obrigewitch, Beau; Pettus, Whitney; Sternicki, Oliver R; Tempel, Troy; Worthington, Aras J Subject: NOT OPERABLE: Producer Y-19A (PTD #2120200) Cannot Be Placed Online for Warm Diagnostics to Evaluate TxIA Attachments: Producer Y-19A (PTD #2120200) TIO Plot 2016-07-18.docx All, Producer Y-19A(PTD#2120200) was placed Under Evaluation to evaluate high OA pressure. Operations bled the OA on 06/30/16.Subsequent diagnostics showed no further signs of OA repressurization. However, on 07/12/16, the IA was bled prior to performing wellhead diagnostics, and subsequently exhibited repressurization. It is suspected that the TxIA communication is via an off-seat check in the orifice gas lift valve. However, surface issues prevent the well from being brought online for warm diagnostics at this time.The well is reclassified as Not Operable. Once gas lift is restored to Y-Pad, the well can be reclassified as Under Evaluation, brought online, and diagnostics performed. A TIO plot is attached for reference. Thanks, Adrienne McVey �E® k\10\I $2���' Well Integrity Superintendent—GWO Alaska (Alternate:Jack Lau) 0:(907)659-5102 C:(907)943-0296 H: 2376 Email: AKDCWeIllntegrityCoordinator@BP.com From: AK, -SUPT Well Integrity Sent: Sunday, July 03,-2o-r6-6433„m To: AK, OPS GC1 OSM; AK, OPS GC1 Field O&M TL; AK, OPS GC1 Wellpad Lead; AK, OPS GC1 Facility OTL; Cismoski, Doug A; Daniel, Ryan; AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; AK, OPS Prod Controllers; Alatalo, Travis; AK, GWO SUPT Slickline; AK, GWO SUPT Special Projects; 'chris.wallace@alaska.gov' Cc: AK, GWO SUPT Well Integrity; AK, GWO DHD Well Integrity; AK, G&Projects Well Integrity; AK, OPS FF Well Ops Comp Rep; Stone, Christopher; 'Regg, James B (DOA) (jim.regg@alaska.gov)' Subject: UNDER EVALUATION: Producer Y-19A (PTD #2120200) Sustained Casing Pressure Outer Annulus All, i Producer Y-19A(PTD#2120200) TIO Plot 07/18/2016 Well Y-19 (000 3,070 Td9 tw 200 OA 000A oao 11.11. ------ ---- —OOA 041&16 042516 0513216 05O916 011616 352116 0590':6 06%16 0613'16 c1,,2^_'6 -1k.2'.16 02,0416 0711'16 01,1616 • • Wallace, Chris D (DOA) From: AK, GWO SUPT Well Integrity <AKDCWellIntegrityCoordinator@bp.com> Sent: Sunday, July 03, 2016 6:33 AM To: AK, OPS GC1 OSM; AK, OPS GC1 Field O&M TL;AK, OPS GC1 Wellpad Lead; AK, OPS GC1 Facility OTL; Cismoski, Doug A; Daniel, Ryan;AK, RES GPB West Wells Opt Engr; AK, RES GPB East Wells Opt Engr; AK, OPS Prod Controllers; Alatalo, Travis;AK, GWO SUPT Slickline; AK, GWO SUPT Special Projects;Wallace, Chris D (DOA) Cc: AK, GWO SUPT Well Integrity; AK, GWO DHD Well Integrity; AK, GWO Projects Well Integrity;AK, OPS FF Well Ops Comp Rep; Stone, Christopher; Regg, James B (DOA) Subject: UNDER EVALUATION: Producer Y-19A (PTD #2120200) Sustained Casing Pressure Outer Annulus Attachments: Y-19 TIO 07-03-16.docx All, Producer Y-19A(PTD#2120200) was reported to have high outer annulus pressure 1780 psi over MOASP on June 30th 2016. Operations bled the outer annulus to 200 psi in 40 minutes with gas returns.The well is now reclassified as Under Evaluation and placed on a 28 day clock to evaluate casing integrity. Plan Forward 1. Downhole Diagnostics: Outer Annulus Re-pressurization test 2. Wellhead: Packoff Test Inner Casing 3. Well Integrity: Further Diagnostics as Needed Please call with questions or concerns. Ryan Holt SCANNED DEC 0 92016 (Alternate. Lee Grey) BP Alaska-Well Integrity GVVGlobai Wells Organization Office: 907.659.5102 WIC Email:AKDCWeIlIntegrityCoordinator@bp.com 1 • • • • Y-19A TIO 04/01/16-07/03/16 •COJ D T. t IA 1.\ -0-OA 1 me 01001€ 011611 W1111 06211€ MON O50,4 04161€ 0 WI 06001€ .0€0616 ..06121€ aux OWN% 0u% Image Project Well History File Cover Page XHVZE This page identifies those items that were not scanned during the initial production scanning phase. They are available in the original file, may be scanned during a special rescan activity or are viewable bAdirect inspection of the file. a - aa0 Well History File Identifier Organizing (done) /"Two-sided ❑ Rescan Needed RESC N: OVERSIZED: NOTES: olor ems: ❑ Ma s: rayscale Items: ogs: ❑ Poor Quality Originals: ❑ Other: ❑ Other: (nn BY: __5 Date: . I `� /s/ M Y 1 Project Proofing BY: Maria Date: Cil 1 7 J9 /s/ 1/14P Scanning Preparation 1" x 30 = / 2O + If =TOTAL PAGES I a Li p (Count does not include cover sheet) BY: Date: ' 7/1 /s/ Production Scanning Stage 1 Page Count from Scanned File: ' ca,5— (Count does include cover eet) Page Count Matches Number inCount doePreparation: YES NO BY: CMa1ia.) Date:/ l /s/ 144 P Stage 1 If NOinstage 1, page(s) discrepancies were found: YES NO BY: Maria Date: /s/ Stage 2 Additional Well Reports: YES NO TOTAL PAGES: Digital version appended by: Meredith Michal Date: /s/ Final Page Count: Stage 1 + Stage 2: TOTAL PAGES: Scanning is complete at this point unless rescanning is required. 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C7 0 a 2 c.) c°..) 2\Z—D 20 211trjt3 Sc hi U IN berg er Transmittal#: 6857 ED Drilling&Measurements DATA LOGGED MWD/LWD Log Product Delivery y /46/2014 APR 1 '- 2014 M K BENDER AOG CC Customer BP Exploration Alaska Inc Dispatched To: Makana Bender Well No Y-19A Date Dispatched: 15-Apr-14 Installation/Rig Doyon 25 Dispatched By: Stephanie Pacillo Data Description Hardcopy Digital Copy Y-19A Color Log Prints 4 VISION*Service 2"MD 1 each Contents on CD VISION*Service 2"TVD 1 each Contents on CD VISION*Service 5"MD 1 each Contents on CD VISION*Service 5"TVD 1 each Contents on CD LAS Digital Data VISION*Service Memory Data Contents on CD Surveys 1 ASP Final Survey 1 each Contents on CD EOW CD 1 Received By: Please sign and return one copyto: Drilling&Measurements 2525 Gambell Street,Suite 400 Anchorage,Alaska 99503 hecheto@slb.com Hector Echeto Fax:907-561-8317 2tZ-02 D VD 1f) f L . 0(4 C . bp 0 Y-19A Survey Geodetic Report Schlumberger (Def Survey) 7eport Date: January03,2013-04:37 PM Survey I DLS Computation: Minimum Curvature/Lubineki • Client: BP Vertical Section Azimuth: 90.000°(True North) • Field: Prudhoe Bay Unit-WOA Vertical Section Origin: 0.000 ft,0.000 ft Structure/Slot: 0-PAD/V-19 TVD Reference Datum: RTE Well: V-19 TVD Reference Elevation: 89.150 ftabove MSL • Borehole: V-19A Base Flange Elevation: 51050 ftabove MSL AP*: 500291185701 Magnetic Declination: 20.589° Survey Name: V-19A Total Gravity Flats Strength: 10019919mgn(9.80665 Based) Survey Date: December 21.2012 Total Magnetic Field Strength: 57623.601 nT Tort/AHD I DDI/ERD Ratio: 423.576°/10314.34011/6.889/1.154 Magnetic Dip Angle: 80.985° ,ordinate Reference System: NAD27 Alaska State Plane,Zone 04.US Feet • Declination Date: December 15,2012 Location Let I Long: N 70°16'3.07233'.W 148°49 57.41872' Magnetic Declination Model: BGGM 2012 oaation Grid NIB 074: N 5948784 000 flUS,E 644352 000 IIUS North Reference: True North • CRS Grid Convergence Angle: 1 0989° Grid Convergence Used: 0.0000° Grid Scala Factor: 0.99992367 Total Corr Mag North>True North: 20.5885° Local Coord Referenced To: Well Head Comments MD Incl Azlm True TVDSS TVD VSEC AND Closure NS EW DIS Northing Eaeting Latitude Longitude (ft) I°I 1°) Ott (P1 Ift) (S) (Ml (ft) (ft) CI100ftl (PUS) (SUS) Cl 1°) RTE 000 000 000 -89.15 0.00 000 0.00 0.00 0.00 0.00 N/A 5948784.00 64436200 70.26752009 -148.83261631 Ongirel Zero Point 8.76 000 000 -8039 0.76 000 0.00 0.00 000 000 0.00 5948784.00 644362.00 70.26752009 -148.83261631 WRP 38.10 000 0.00 -5105 38.10 000 0.00 000 0.00 0.00 000 5948784.00 64436200 70.26752009 -146.83261631 4071 020 116.70 -4244 4671 001 002 002 -001 001 232 5948783.99 644362.01 70.26752007 -148.83261620 54.31 0.26 11159 -34.84 54.31 0.04 000 004 -pm 004 0 68 5948783.98 844362 04 70 26752004 -148.8326159B 61.91 0.28 110.29 -27.14 61.91 007 008 0.08 -0.03 0.07 0.44 5908783.97 644362.07 70.26752000 -148.83261572 69.51 0.27 112.98 -19.64 6951 0.11 0.12 012 -0.05 0.11 021 5948783.96 644362.11 70.26751997 -146.83261544 7541 025 11609 -13.74 7541 013 0.14 0.14 -0.06 0.13 041 5948783.95 644362 13 70.26751994 -14883281525 88.01 0.18 12409 -874 68.41 0.17 0.19 0.19 -0.08 0.17 0.50 5948783.92 644362.18 70.26751987 -146.83261491 101.61 0.17 130.06 12.66 101.61 0.21 0.23 0.23 011 0.21 0.16 5948783.90 644362 21 70.26751980 -148.63281464 115.21 0.17 131.70 26 06 115 21 0 24 0.27 0.27 -013 0.20 004 5948783 87 644362 24 70 26751973 -148 83261440 12841 0.17 12954 39.26 128.41 027 031 0.31 -0.16 027 005 6948783.85 644362.27 70.26751966 -148.83261416 141.71 0.18 128.11 52.56 141.71 030 0.35 0.35 -0.18 an 008 5948783.82 644362.30 /0.28751959 -148.83261390 155.01 0.18 127.10 65.86 15501 033 0.39 0.39 -0.21 0.33 0.02 5948783.80 644362.33 70.26751952 -148.83261383 168.31 0.18 126.1/ 79.16 168.31 0.30 044 0.43 -023 036 002 5948783 77 644362 37 /0 26751946 -148 83281336 181.61 020 127.26 92.46 181.61 0.40 0.48 0.48 -0.26 0.40 0.15 5948783.75 64436240 /0.26/51930 -148.83261308 195.01 023 12151 105.86 195.01 044 0.53 0.63 -0.29 0.44 022 5948783.72 64436245 /0.26/51930 -148.83261275 208.41 025 12639 119.26 20841 048 0.59 0.58 -032 0.48 0.15 594878369 644362.40 7026751921 -148.83261239 221.81 0.27 12423 132.66 221.61 053 065 084 -036 0.53 0.1/ 594878365 644382.54 /0.26751911 -14883281199 235.11 028 12179 145.96 235.11 0.59 071 071 -039 0.59 0.12 594878382 64436260 70.26751902 -148.83261156 24841 030 120.47 159.26 248.41 0.65 0.78 0.77 -043 085 016 5948783.58 644362.65 /0.26/61892 -148.83261109 261./1 032 11996 172.56 261./1 0.71 085 085 -046 0.71 015 5948783.55 644362.72 70.26751882 -148.83261059 275.01 032 118.57 185.86 27501 0.77 0.92 092 -0.50 0.77 0.06 5948783.51 644362.78 70.26751872 -148.83261006 28841 033 11722 19926 28841 084 100 100 -0.54 084 009 5948783.48 644362 85 70.26/51863 -148.83260952 301.76 0.33 115.54 212.61 301.70 0.91 1.08 107 -0.5/ 091 00/ 5948783.46 644362.92 /0.26/51853 -148.83260896 315.11 0.31 11269 225.96 315.11 098 1.15 1.15 -0.60 098 014 5948783.42 644362.99 70.26/51805 -108.83260841 32841 030 11151 239.26 32841 104 1.23 122 -0.63 104 0.16 594878339 64436306 70.26/51838 -148.8326078/ 341.71 028 11381 252.50 301.71 1.11 129 129 -0.05 I.11 0.17 5948783.3/ 644363.12 70.26751831 108.83260737 355.06 025 118.38 265.91 355.06 1.16 1.35 136 .000 1.18 02/ 594878334 644363.1/ 70.26751823 -148.83260692 368.41 0.22 12483 279.26 38801 1.21 1.41 140 071 121 030 594878331 64436322 /026/51815 -148.83260654 381.76 020 131.79 292.61 381.76 125 146 1.45 -0.74 1.25 0.20 5946783.28 644363.16 70.26751807 -148.83260623 395.11 020 139.22 30596 395.11 1.28 150 149 -077 128 0.19 5948/83.25 64436329 7026751798 -10883260597 408 41 0.18 14429 319 26 400.41 131 1.55 1 54 -0.81 131 0.20 5948783.22 644363.31 /0.26751789 -148.832605/4 421.76 0.18 14697 332.61 421.76 1.33 1.59 1.57 -0.84 133 006 6948/83.18 644363.35 70.26751/79 -148.83260555 43511 020 151.52 34596 435.11 135 183 1.61 -0.88 135 0.19 5948783.15 64436337 70.26751769 -14883260537 448.41 0.20 156.39 359.26 448.41 137 1.68 165 -0.92 137 0.13 5948783.10 644363.39 70.26751757 -148.83260521 481.71 020 16845 372.56 481.71 1.39 1./3 169 -096 1.39 005 5948/83.06 644363.41 70.26/51746 -148.83260506 475.11 023 15646 385.96 475.11 1.41 1.78 1.74 .1.01 1.41 023 5948783.02 644363.43 70.26751733 -148.83260491 490.51 023 15020 401.38 490.51 1.40 1.84 1.79 -1.07 1.44 0.10 5948782.96 644363.46 70.26751718 -148.83260488 50596 0.25 139.29 416.81 505.96 148 1.90 1.85 -1.12 1.48 032 5948782.91 644363.50 70.26751704 -148.83260438 621.01 0.28 128.67 032.26 621.01 1.53 1.98 1.92 -1.17 1.53 037 5948/82.86 644363.55 70.26751690 -148.83280396 636.91 0.32 12205 447.76 638.91 1.59 2.06 2.00 -1.21 1.59 034 5948/82.82 644363.62 70.26/51677 -148.83260343 552.51 0.33 11808 463.36 55251 1.67 2.14 2.09 -1.26 1.67 0.16 5948/82.77 644363.89 70.26/51665 -148.83280281 568.11 0.35 114./6 478.96 666.11 1.75 2.24 2.18 -1.30 1.75 0.18 5948/82.73 644383./8 70.26/51854 -108.83280210 58366 0.35 11244 494.50 583.65 1.84 233 227 -1.34 134 009 5948782.70 644363.8/ 70.26751644 -148.83260143 Drilling Office 2.6.1166.0 Prudhoe Bay Unit-WOA\Y-PAD\Y-19\Y-19A\Y-19A 1/3/2013 4:50 PM Page 1 of 7 • Comments MD Incl ABm True TVDSS TVD V8EC AND Closure 1,19 EW DL9 Northing Easting Latitude Longitude (8) (°) 7) (o) (8) (8) (8) (8) (fl) (8) rsoons (8U8) (SU9) 7) r) 599.26 0.35 110.18 510.10 59925 1.93 2.43 2.37 -1.37 1.93 0.09 5948782.86 044363.95 7026751634 -148.83260072 614.86 035 108.69 525.70 61485 2.02 2.52 246 -140 202 0.06 5948782.63 644364.04 70.26751826 -148.83259999 63051 037 107.42 541.35 630.50 2.11 262 2.55 -1.43 211 0.14 5948782.61 844364.14 70.26751617 -148.83259925 646.11 035 10478 556.95 646.10 2.21 2.12 2.65 -146 2.21 0.17 5948782.58 644384.23 70.26751610 -148.83259847 661.66 035 10227 572.50 66165 230 201 274 .1.48 230 0.10 594878256 644364.33 70.28751604 -148.83259773 67726 033 9956 58810 67725 2.39 201 282 -150 239 0.16 5948182.54 644364.42 70.28751599 -148.83259699 692.86 0.32 9782 603.70 69285 248 300 290 -1.52 2.48 009 5948182.53 644364 51 70.26751595 -148.83259628 708 46 0.28 9750 619.30 70845 256 308 2.98 -1.53 258 026 5948782.52 644364.59 70.26751592 -148.83259563 724.06 0.21 94.41 634.90 724.05 2.63 3.15 3.05 -153 283 0.11 5948782.52 644364.68 70.26751590 -148.83259503 739.78 0.25 9227 650.60 739.75 2.70 322 3.11 -1.54 270 014 5948782.51 644364.73 70.26751589 -148.83259445 75546 028 8303 686.30 155.45 2.78 330 3.18 -154 278 0.19 5948782.51 644364.80 10.26751588 -148.83259381 771.06 032 92.48 681.90 71105 2.86 3.38 3.25 -1.55 286 0.26 5948782.51 644364.89 70.26751587 -148.83259321 786.66 0.35 91.67 697.50 786.65 2.95 3.47 333 -1.55 2.95 0.19 5948782.51 644364.98 7028751586 -148.83259247 80226 0.40 90.17 713.10 802.25 3.06 3.57 342 -155 305 033 594878251 64436508 7028751586 -148.83259164 817.91 0.43 8729 72875 817.90 3.16 368 3.52 -1.55 3.16 023 594878281 644365.19 10.26751586 -148.83259073 833.36 043 85.02 744.20 833.35 3.28 3.80 362 -154 3.28 0.11 5948782.52 644365.31 70.26751589 -148.83258979 848.18 0.45 8192 759.60 848.75 340 3.92 3.72 -153 340 0.20 5948782.54 644365.43 10.26151592 -148.83258884 864.06 0.45 78.87 77490 864.05 3.52 404 382 -151 3.52 0.16 594878256 644365.54 70.26751598 -14883258780 87941 045 76.98 790.25 879.40 3.83 4.16 392 -148 3.63 0.10 5948782.59 644365.66 70.26751605 -148.83258693 894.16 0.45 75.19 805.60 894.75 3.75 4.28 402 -145 3.15 0.05 5948782.82 644365.78 70.26751613 -148.83258699 910.16 0.43 71.06 82100 910.15 3.87 440 412 -142 387 0.16 5948782.65 644365.89 70.26751620 -14883258506 925.51 040 77.57 836.35 925.50 3.97 451 4.21 -1.40 307 020 5848782.68 644368.00 7026761627 -148.83258418 940.96 0.38 7450 851.80 94095 4.08 461 4.30 -1.31 408 0.19 6948782.70 644368.10 70.28751634 -148.83258336 956.36 0.43 6662 867.20 96835 4.18 4.72 4.39 -134 4.18 049 5948782.74 644366.20 1026751644 -148.83258253 971.76 0.47 5906 88760 971.75 4.29 484 4.47 -128 429 046 5948782.80 64436631 7028151859 -14883258166 987.18 047 56.82 898.00 987.15 439 497 4.56 -121 4.39 0.13 5948782.87 644366.41 70.28751677 -148.83258080 100751 147 54.14 91335 00750 450 510 4 64 -1.14 4.50 0.13 5948782 94 644366.52 70.26751697 -148.83257996 1011.56 0.45 52.56 928.39 017.54 4.59 5.22 4.72 -107 4.59 0.16 5948783.02 644368.61 70.26751717 -148.83257918 1032.71 0.42 49.97 943.54 032.69 466 5.33 4.79 -100 4.68 0.24 5948783.09 644366.70 70.26751736 -148.83257845 1048.01 138 4806 958 84 04799 476 5.94 485 -0 B3 4.76 0.28 5948783.16 644366.78 70.26751755 -148.83257780 1083.36 0.35 4692 974.19 063.34 484 5.54 4.91 -086 484 0.20 5948783.23 644368.85 70.26751773 -14883257722 1078.71 0.30 42 95 989.54 078.69 490 862 496 -080 4.90 0.36 5948783 29 644366.91 70.26751790 -148.83257672 1094.08 0.25 38.01 1004.89 094.04 494 5.70 6.00 -075 4.94 0.38 5948783.36 644366.96 70.28751805 -148.83257633 1109.41 0.20 3101 1020.24 109.39 408 518 803 -0 70 4.98 0 37 594878340 644386.99 70.26751819 -148.83257605 112476 0.13 2180 1035.59 12474 500 580 804 -066 5.00 0 49 594878344 64436701 70.26751830 -148 83257589 1140.06 007 5.47 1050.89 140.04 501 5.83 505 -063 5.01 0.43 594878346 644367.02 70.26751837 -148.83257583 1155.41 003 313.63 106624 15539 500 584 5.04 -062 5.00 0.37 594878348 844367.02 70.26751840 -14883257585 1170.81 0.03 24238 1081.64 170.79 500 5.86 5.04 -082 5.00 0.23 594878348 644367.01 70.26751840 -148.83257600 1186.16 005 205.28 1096.99 186.14 499 5.86 5.03 -063 4.99 0.21 6948783.47 644367.00 70.26751838 -148.83257595 120141 0.07 20001 111224 201.39 4.99 5.87 5.03 -064 499 0.14 594878345 644367.00 70.26751834 -148.83257600 1216.71 106 189.35 1127.54 216.89 498 5.80 5.02 -066 498 0.11 5948783.43 644366.99 70.26751829 -148.83257604 1231.01 008 172.68 114274 231.89 498 5.91 5.03 .088 4.98 0.15 5948783.41 644366.99 70.26751823 -148.83257804 1241.16 0.12 15695 115709 247.14 4.99 5.94 5.04 -071 4.99 032 5948783.39 64436700 70.26751816 -14883257598 1262.51 0.18 13948 117334 26249 501 5.98 5.06 -0.74 6.01 049 5948783.36 644367.02 10.26751807 -14883257580 1277.81 0.25 13324 118864 277.70 605 604 5.11 .478 5.05 0.40 594878332 644367.06 10.26751796 -148.83257548 1293.11 0.32 134.27 1203.94 293.09 5.10 6.11 617 -083 5.10 0.46 5948783.26 644367.12 70.26751781 -148.83257504 1308.51 038 13625 121934 30849 6.17 621 5.25 -0 90 5.17 0.40 5948783 20 644367.19 70.26751763 -148.83257450 132381 0.45 138.43 1234.64 32319 6.25 832 834 -098 5.25 0 47 5948783.12 64436726 70.26751741 -148.83257390 1339.11 0.52 14124 1249.94 339.09 5.33 8.46 6.44 -108 5.33 0.48 594878302 64436736 70.26751714 -14883257322 1354.41 157 143.98 1265 24 35439 5.42 6.59 5 55 -1.20 842 0.37 5948782 91 64436744 70.26751682 -14883257251 1369.71 0.60 145.43 1280.64 389.69 5.61 6.76 668 -132 551 0.22 594878218 64436753 70.26751647 -148.83257178 • 1385.11 063 146 42 1295 94 385.09 560 6.92 5.19 -106 580 0 21 5948782 65 644361.83 70.26751610 -14883257103 1400.41 065 148.88 1311.24 400.39 569 7.00 5.92 -1.80 6.89 0.73 5948782.50 644367.72 70.26751571 -14883257027 141571 0.63 146 68 1328.54 416.69 5.79 1.26 805 -175 5.79 0.13 6948782 36 64436782 70.26751532 -148.83256951 1431.11 0.67 15482 1341.94 431.09 587 742 8.16 -189 5.87 068 594878223 64436790 70.26751494 -148.83256881 1448.41 0.50 763.56 1357.24 446.39 592 7.56 6.25 -202 5.92 0.10 5948782.09 844367.96 70.26751467 -14883256846 1461.11 0.48 16543 1372.54 46169 595 7.88 6.33 -2.15 5.95 0.17 594878197 64436799 70.26751423 -14883256818 1477.11 0.45 16720 138793 41708 598 782 8.40 -227 5.98 0.22 594878185 64436802 70.26751390 -148.63256794 • 1492.51 0.43 16867 1403.33 492.48 6.01 7.94 6.46 -2.38 8.01 0.75 6948781.73 64436806 70.28751368 -14883266774 1507.81 0.37 171.48 1418.63 50778 603 8.04 6.52 -249 8.03 0.41 5948781 83 644368 07 70.26751329 -14883256759 1523.06 0.32 17486 143388 523.03 6.04 813 6.57 -2.56 6.04 0.35 5948781.54 644388 09 10.26751304 -148.83256750 1538.31 0.28 17702 1449.13 538.28 6.04 821 6.60 -266 6 04 027 5948781.46 644388 09 70.26751283 -14883256745 1553.56 133 170.52 146438 55153 605 8.29 6.64 -2.74 6.05 0.40 5948781.38 644368.10 70.26751261 -148.83256737 1568.81 042 15786 147963 568.78 608 839 6.71 -2.84 8.08 080 5948781.28 644388.13 70.26751235 -148.83256714 168411 143 15290 149493 584.08 6.13 8.51 6.80 -294 6.13 0.24 6948781.18 644368.18 70.26751207 -148.83256676 1599.01 0.42 153.20 1610.23 599.38 6.18 8.62 6.89 -3.04 6.18 0.07 6948781.08 64436824 7026751179 -148.83256834 1614.71 140 150.15 152853 614.68 823 573 6 98 -314 623 019 594878098 644368 29 70.26761153 -146.83256592 1629.91 033 14692 1540.73 62088 628 8.83 706 -3.22 628 0.48 594878090 644368.34 70.26751130 -14883256552 Drilling Office 2.6.1166.0 Prudhoe Bay Unit-WOA\Y-PAD\Y-19/Y-19A\Y-19A 1/3/2013 4:50 PM Page 2 of 7 • • Comments MD Incl AZIm True TVDSS TVD VSEC AHD Closure NS EW DLS Northing Easting Latitude Longitude (8) 7) C) (0) (8) (n) (8) (n) (5) (n) fll0on) MUS) (DUD) 7) C) 164501 025 15137 1555.83 64498 6.32 8.90 7.12 -3.28 6.32 0.65 5948780.84 644368.38 70.26751112 -148.83256520 1660.16 022 157.44 157098 680.13 6.35 8.97 7.17 -334 635 0.26 5948780.78 644368.41 70.26751097 -14883256498 1675.31 022 159.99 1586.13 675.28 637 9.02 722 -3.39 637 006 5948780.73 644368.43 70.26751082 -148.83256481 1690.41 020 165.73 1601.23 690.38 639 9.08 7.26 -345 639 0.19 5948780.68 644368.45 70.26751068 -148.83256488 1705.61 0.18 167.43 1616.43 705.58 6.40 9.13 7.29 3.50 6.40 0.14 5948780.63 644368.46 7026751054 -148.83256458 1720.76 0.15 169.18 1631.58 720.73 6.41 9.17 7.32 -3.54 6.41 0.20 5948780.59 644368.47 70.26751043 -14883256461 173691 0.13 176.71 1648.73 735.88 6.41 9.21 734 -3 57 641 0.18 5948780.55 644368.48 70.28751033 -14883256447 1751.11 0.15 163.78 166193 75108 641 9.25 736 3.61 6.41 0.17 5948780.51 644368.48 70.26751022 -14883256447 1766.26 0.18 189.57 167708 766.23 6.41 929 7.38 3.06 641 0.23 5948780.47 644368.47 70.26751011 -14883256452 178141 0.27 17501 169223 781.38 6.40 9.35 740 3.71 640 0.70 5948780.41 644368.47 70.26750995 -14883256452 1796.51 042 15845 1707.33 796.48 6.43 944 747 -380 6.43 1.18 5948780.32 644368.50 70.26750971 -14883256433 181160 0.62 150.96 1722.48 81163 6.48 9.58 7.58 -3.93 6.48 1.32 5948780.20 644368.55 70.26750936 -14883256394 1826.76 0.83 162.33 1737.58 82673 654 9.77 7.72 -411 6.54 140 5948780.02 644368.62 70.26760886 -148.83256345 184191 1.00 16398 1752.73 841.88 661 10.01 7.91 -434 6.61 1.14 5948779.79 644368.69 70.26750823 -14883256288 185706 1.37 167.91 1767.87 857.02 6.68 10.32 8.14 -465 668 2.50 5946779 48 644368.77 70.26750740 -148.83256228 1872.11 1.95 172.65 1782.92 87207 6.75 10.76 8.45 -508 675 3.96 5948779.05 644368.85 70.26750622 -14883256171 1887.16 2.55 175.65 179795 887.10 681 1135 8.86 -5.66 6.81 4.06 5948778.47 64436892 70.26750462 -146.83256124 1902.21 2.92 178 61 181299 902.14 8.85 12137 9.36 -ass 6.65 263 5948777.75 644360.97 70.26750266 -14823256096 1917.36 2.98 180.90 1828.12 917.27 665 12.85 9.91 -7.16 6.85 0.87 5948776 97 644368.98 7026750053 -148.83256094 1932.46 2.88 181.00 1843.20 93235 6.84 13.02 1047 -793 684 066 594877620 644368.99 7026749842 -14883256104 1947.56 272 18147 185828 94743 682 1436 1103 -6.67 6.82 1.07 5948775.46 64436698 70.26749641 -14683256117 1962.76 262 182.93 1873.46 982.61 6.79 15.05 11.57 -4.36 679 139 5948774 77 644368 97 70.26749451 -148.83256138 1977.91 2.37 18282 1888.60 977.75 6.76 15.70 1208 -10.01 676 099 5948774.12 64436895 70.26749275 -14883256164 1993.06 225 182.24 1903.74 99289 6.73 16.31 1257 -1062 6.73 0.81 594877351 644368.94 70.26749108 -14883256186 2008.16 217 18240 191883 007.98 6.71 1689 1306 -1120 6.71 0.53 5948772.93 64436892 7026748949 -14883256205 2023.36 2.10 18243 193402 023.17 6.69 1746 13.53 11.77 669 046 5948772.36 644368.91 7026748794 -148.83256224 2038 46 203 182.53 1949.11 038.26 666 18.00 14.00 -12.31 6.66 0.46 5948771.82 64436890 70.26748646 -14883256243 2053.66 1.92 182.23 196430 053.45 6.64 1853 1445 -12.63 664 0.73 5948771.30 64436889 7026748503 -14883256261 2068.86 180 18169 197949 08864 6.62 1902 1488 -13.33 662 0.80 594877080 64436888 70.26748368 -14883256275 2083.96 1.72 182.01 1994.58 083.73 6.61 1948 15.29 -1379 6.81 0.53 5948770.34 64436887 70.26748242 -148.83256287 2090.06 1 65 181.44 2009.68 098.63 6.60 1993 15 69 -1423 660 0 48 5948769 90 644368 87 70.26748120 -148.83256298 211426 158 18063 202467 11402 6.59 2036 1608 -1466 6.59 048 594876947 64436887 70.26748003 -14883256304 2129.36 1.52 181.38 2039.96 129.11 668 20.76 16.45 -1507 6.58 042 594876906 644368.87 70.26747892 -148.83256310 214431 1.43 181.46 205491 14406 667 21.15 16.80 -15.46 657 0.60 5948708.67 644368.87 70.26747787 -14883256317 2159.21 1.35 181.34 2069.80 158.95 6.58 21.51 17.12 -1502 6.56 054 5948768.31 644368.86 7026747688 -14883256325 2174.36 1.27 182.03 208495 174.10 6.55 21.66 1744 -16.16 6.55 054 5948767.97 64436886 70.26747593 -14883256333 2189.56 1.20 181.94 2100.15 18930 654 22.18 17.74 -16.49 6.54 0.80 5948767.64 644368.86 70.26747504 -148.83256342 2204.66 1.13 18265 2115.24 204.39 6.53 2249 1802 -16.60 6.53 047 5948767.33 644368.85 70.26747420 -14883256352 2219.71 1.12 18451 213029 219.44 6.51 22.79 18.29 -17.09 6.51 026 5948767.04 644368.64 70.26747340 -14883256367 2234.76 1.13 183.15 2145.34 234.49 649 23.08 18.56 -1739 6 49 0.10 5948766.74 644368 82 70.26747259 -14863256383 2249.81 1.12 181.88 216039 24964 6.48 23.38 18.83 -17.68 6.48 0.20 5948786.45 644368.62 70.26747178 -14883256393 2264.96 103 182.81 2175.53 264.88 647 2366 1910 -1797 647 0.61 5948766.16 644368.61 70.26747101 -14803256401 2280.06 098 183.80 219063 279.78 645 23 93 1934 -1823 645 0.36 5948765.90 64436860 7026747029 -14883256413 229526 097 185.00 2205.83 294.98 643 24.18 19.58 -1849 6.43 0.15 5948765.84 644368.79 70.26746958 -148.83256429 231041 0.95 185.76 2220.98 310.13 6.41 24.44 16.81 -18.74 6 41 0.16 5948765 39 644368.77 70 26748889 -14883256449 2325.51 092 186.59 223607 325.22 638 24.69 20.03 -18.99 6.38 0.22 5948785.14 644368.75 70.26746822 -14883256470 234061 088 187.24 2251.17 340.32 6.35 2492 20.25 -1922 635 0.27 5948764.90 644368.72 70.26746758 -14883256493 2355.76 083 18644 226632 355.47 632 25.15 2045 -19.45 8.32 0.35 5948764.68 644368.70 70.26746697 -14883256518 2370.91 0.80 189.73 228147 370.62 629 25.36 2064 -19.66 6.29 0.23 5948764.47 644368.67 70.26746639 -14883256545 2386.01 0.73 190.82 2296.57 385.72 6.25 25.57 2062 -19.86 6.25 0.47 5948764.27 644368.63 70.26746584 -148.83256574 2401.11 0.68 192.33 231167 40682 6.22 25.75 20.98 -20.04 6.22 0.35 5948764.09 644368.60 70.28740535 -14883256604 2418.11 0 63 195.43 2326.67 415.82 6.18 25 92 21.13 -2021 6.18 0.41 5948763.92 644368.56 7626746489 -148 83256638 2430.96 0.57 199.38 2341.51 430.66 6.13 26.08 2126 -2035 6.13 0.49 5948763.77 644366.52 70.26746449 -14883256675 2445.86 657 198.93 235641 445.58 6.08 26.23 21.38 -20.49 6.08 0.03 5948763.63 644368.47 70.26746410 -14883256714 2460.81 0.55 19660 2371.38 460.51 6.04 26.37 21.50 -20.63 6.04 0.19 5948763.49 644368.43 70.26746372 -14683256750 2475.71 0.50 198.24 2386.26 476.41 600 26.51 21 61 -20.70 6.00 0.35 5948763.36 644368.39 70.26746337 -148 83256784 2490.61 048 19960 2401.18 490.31 5.95 26.64 21.72 -20.88 5.95 0.16 5948763.24 644368.35 70.26746304 -148.83256817 2505.51 0 45 200.71 2416.06 505.21 5.91 26.76 21.81 -21.00 5.91 0.21 5948763.12 644368.31 70.26746273 -14883256851 2520.41 0.42 203.07 243096 520.11 587 26.87 21.90 -21.10 5.57 0.23 5948763.02 644368.27 70.26746244 -14883256885 2535.21 040 20488 2445.76 534.91 5.83 26.98 21.99 -2120 583 0.16 594876292 644368.23 70.26748218 -14883256919 2650.06 0.38 20732 2460.61 549.76 5.78 27.08 2266 -2129 5.78 0.18 594876283 644368.19 70.26746193 -14883256955 2564.91 038 210.96 2475.46 564.61 573 27.18 22.13 -21.38 5.73 0.16 5948762.74 644368.14 70.26746169 -148.83256994 2579.01 0.38 203.26 2990.36 579.51 5.69 2727 22.21 -21.46 569 0.34 5948762.65 644368.10 70.26746146 -14883257030 2594.71 035 196.18 2505.26 594.41 5.86 2737 2228 -21.55 5 86 0.36 5948782.56 644368.07 70.28746121 -148.83257056 2609.61 030 197.59 2520.10 60931 563 27.46 22.36 -21.63 5.63 0.34 5948762.48 644368.05 70.26748099 -14883257076 2624.41 030 196.76 253496 624.11 561 27.53 2242 -21.71 561 003 594876241 644368.03 70.26746079 -14883257095 263931 030 19944 254986 63901 559 27.61 2249 -21.78 5.59 0.09 5948762.33 644368.00 70.26746059 -14883257114 Drilling Office 2.6.1166.0 Prudhoe Bay Unit-W OA\Y-PAD\Y-19\Y-19A\Y-19A 1/3/2013 4:50 PM Page 3 of 7 • Comments MD Incl Azim True TVD86 TVD V8EC AND Closure NS EW OLS Northing Eating Latitude Longitude (5) Ci C) (5) (6) on (0) On (0) (n) 0100R) (I198) (SUS) C) C) 2659.21 0.28 200.61 2564.76 2653.91 556 2768 22.55 -21.85 566 0.14 5948762.26 644367.98 70.26798039 -148.83257135 2669.11 028 20176 257986 2668.81 5.53 27.76 2261 -21.92 5.53 0.04 5948762.19 644367.95 70.26746021 -14883257158 268401 025 205 07 259456 268371 661 27.83 2266 -21.98 5.51 0.23 5948762.13 64436793 70.26746003 -148.63257179 2698.91 023 208.34 260946 2698.61 548 27.89 2271 -22.04 648 0.16 5948782 07 644367.90 70.26795988 -14883257201 13-38' 2712.78 0.30 214.22 2823.31 271246 545 27.95 2275 -22.00 545 0.61 5948782.02 84438787 10.28795873 -148.83257228 271371 0.30 214.53 262426 2713.41 5.44 2796 2276 -22.10 544 0.51 5948782.01 844367.87 70.26745972 -14843257230 272881 047 214.80 2639.16 2728.31 5.39 28.06 2282 -2218 539 1.14 5948761.93 64436781 70.26745950 -14863257276 2743.51 063 209.84 265406 2743.21 531 2820 2292 -2230 5.31 1.12 594878181 844367.74 70.26745917 -148.83257338 275841 0.68 207.95 2668.96 275811 5.23 2837 2305 -2245 5.23 0.37 594876166 64436766 70.26745876 -148.83257404 2773.26 088 20728 268380 2772.95 5.15 28.55 23.18 -2261 515 0.05 5948761.50 644367.58 70.26745833 -14883257470 2788.11 0.67 208.25 2698.65 2787.80 5.06 28.72 2332 -22.76 506 0.10 594876134 64436750 70.26746791 -14883257536 2802.91 083 213.79 271345 2802.60 4.98 28.89 2344 -22.91 498 0.50 594876120 64436742 70.26745752 -14883257606 2817.81 080 22337 272635 281750 4.88 2905 23.54 -23.03 4.88 0.72 5948761.07 64436732 70.26745718 -14883257686 2832.71 060 233.68 2743.26 2832.40 4.76 2920 2382 -23.13 476 0.72 594876096 64436721 70.26746689 44883257780 2847.51 0.68 246.14 275805 284720 4.82 29.37 2367 -23.21 462 1.08 594876088 64436706 70.26745667 -14883257895 2882.38 090 26131 277290 2862.05 4.92 29.57 2388 -2327 442 2.03 5948760 82 644366 87 70 26745653 -14883258054 2877.11 1.20 273.83 278785 2876.80 4.16 2984 2364 -2327 4.18 255 594876081 64436660 70.26745651 -148.83258271 2891.91 167 281.53 280244 2891.59 3.80 30.20 23.53 -2322 3.80 2.79 594876086 64436625 7026745865 -14883258557 2906.76 193 28684 261729 2906.44 3.36 30.65 23.35 -2311 3.36 266 594876096 64436581 7026745696 -14883258911 2921.61 2.23 29162 2832.13 292128 286 31.19 23.11 -22.93 2.88 233 5948761.13 64436529 70.26745744 -14863259322 2936.51 260 29561 284701 2936.16 2.29 31.81 2260 -2268 2.29 2.12 594876137 644364.73 7026745812 -14883259777 2951.36 283 298.45 2861.85 295100 168 3260 2243 -22.37 1.68 239 5948761 67 64436411 70.26745898 448.83260273 2966.28 3.15 300.92 2876.73 296588 100 33.27 2201 -2196 1.00 2.31 694876204 644363.43 70.26746003 -148.83260819 2981.11 340 30385 289155 2980.10 029 34.12 21.53 -21.53 0.29 203 594876248 64436270 7026746128 -14883261398 299601 3.72 30741 2908.42 298667 -0.46 35.05 20.99 -2099 -046 281 594876301 64436194 70.26746276 -14883262006 3010.81 4.15 310.94 2921.19 3010.34 -125 38.06 20.39 -20.35 -125 3.33 6948763.63 644361.14 70.26746451 -148.83262640 Tie-In Survey 3025.71 4.70 31383 293804 3025.19 -2.10 37.21 1968 -19.57 -2.10 398 594876439 64436028 70.26746663 -14883263326 TOW 3030.00 8.74 32408 2940.91 302048 -2.37 37.84 1930 -10.25 -2.37 53.00 5048784.71 84438000 70.28740752 -148.83283547 BOW 304700 7.13 327.28 2057.10 304634 -553 30.69 17.00 1755 -3.53 3.22 5948788.39 844358.81 70.28747215 -148.83264482 3111.00 1092 33269 302039 3109.64 6.46 49.72 1222 6.82 6.46 6.06 694877502 64435371 70.26749600 -14883268489 314500 12.58 332.87 3053.67 314282 -1162 56.64 1192 -266 -1162 4.88 5948781.12 644350.93 70.26751282 -14883271029 317500 15.07 333.57 3082.80 3171.95 -1485 63.81 1531 374 -1485 8.32 599878746 64434708 7026753031 -14883273837 320500 16.64 332.27 3111.66 3200.81 -18.58 7201 2161 1103 -1858 537 5948794.67 64430.21 7026755023 -14883278657 326733 18.87 326.65 3171.02 3260.17 -2828 9100 3935 2736 -28.28 451 5948810.81 644333.20 7026759483 448.83284496 332689 20.88 322.74 322892 331607 -4039 11191 6062 4440 40.30 3.89 5948827.81 844320.77 7028164138 -148.83294288 342409 2402 32650 331690 3406.05 -01.35 148.23 96.17 7405 -6135 364 5948868.68 644299.24 7026772240 -148.63311237 3619.36 24.51 32643 3403.75 349290 6298 18738 135.16 106.88 8298 0.62 5948689.07 644271.00 70.26781155 -148.83328723 361409 2782 326.34 3488.77 3577.92 -106.11 22915 17684 14147 -106.11 3.49 5948923.90 644253.21 70.26790658 -148.83347422 370901 3202 32490 357102 3660.17 -13288 27648 22414 18051 -13286 4.49 5948961.92 64422671 70.26801323 -14863369058 3740.09 3386 325.10 3597.10 3688.25 -142.56 29338 241.03 194.35 -142.56 5.93 5948975.57 644215.75 70.26805105 -148.83376895 3771.74 3448 32464 3623.29 371244 -152.79 311.16 25880 208.69 -152.79 2.12 5948969.91 644205.25 70.26809077 -148.83385166 3802.88 3743 32647 364849 373764 -16325 32944 277.08 223.88 -163.25 9.80 5949004.69 844194.50 70.26813171 -148.83393630 389760 91.71 32301 3721.49 3810.64 -198.55 38976 33740 272.79 -19665 4.81 5949062.91 644158.27 70.26826533 -148.63922166 3992.37 45.57 32293 379006 3879.21 -237.93 455.15 40278 324.99 -23793 4.07 5949104.34 644117.90 70.26840794 -148.83454012 4087.45 4886 323.97 3854.76 3943.91 -279.90 52461 47243 38096 -279.40 3.35 5949159.50 644076 37 70.26856083 -14683487544 4182.55 61.20 32462 391598 4005.13 -321.88 597.58 54520 440.05 -321.86 2.72 5949217.77 644031.78 70.26872227 -148.83521880 9277.12 53.02 325.14 3973.46 4062.61 -36505 67266 620.27 601.47 -36506 2.91 5949278.34 843987.43 70.28889005 -148.83556803 937207 57.21 32440 4027.15 4118.30 -410.23 75096 69866 566.42 410.23 3.52 5949341.41 643941.04 70.26906476 -198.83593335 4403.00 6031 32468 404342 4132.57 -425.99 777.26 72488 588.85 -425.49 6.83 5949362.63 643925.37 70.26912329 -14883605674 4434.00 59.93 32449 4059.09 4148.24 -44098 80401 75181 60864 -40.98 2.07 5949384.03 643909.46 70.26918283 -148.83618206 4466.82 62.96 323.71 4074.78 416393 -457.89 83283 780.43 63199 -46789 9.44 594940704 643892.11 70.26924660 -148.83631876 4561.08 63.89 32378 4117.10 4206.25 -507.68 91703 88483 699.89 -60768 079 594947397 643841.03 70.26943210 -14883672144 4658.03 65.03 322.70 4158.19 424734 -558.92 100285 960.24 768.48 -558.92 1.74 5949541.56 643786.49 70.26961947 -148.83713582 4750.95 64.80 32271 4198.44 4287.59 -611.01 108882 1038.19 83687 -61101 0.24 594960893 643735.10 70.26980629 -148.83755706 4846.80 64.44 322.66 4239.09 4328.24 662.96 117431 112187 90602 -682.96 038 594967607 64368186 70.28999247 -148.83797717 4940.66 6439 32249 428006 436921 -714.96 1269.87 1207.41 972.97 -71496 0.17 594974300 643628.57 70.27017809 -148.83839767 5035.56 6416 32221 4321.25 4410.40 -767.18 1345.37 129288 1040.66 -767.18 0.36 6949809 68 643575 06 70 27036300 -148.83882001 5128.89 63.78 32183 436220 445135 -818.90 1429.23 1376.71 1106.67 -81890 0.89 594987468 64352209 7027054333 -148.83923832 5224.77 6363 322.49 440468 449383 671.75 1515.19 146264 1174.46 -871.75 082 5949941.44 64346796 70.27072851 -148.83966575 5319 45 6272 320 31 444741 4536.66 -92446 1599.67 1547.07 124049 -924 46 2.27 595000644 643414 00 70.27090888 -148 84009199 5419.51 6222 32003 4491.35 4580.50 -97845 1883.97 163125 130523 -978.45 0.69 6950070.12 64335678 70.27108671 448.84052867 5509.06 61.54 32249 4635.91 482508 -1010.63 176736 171469 137026 -1030.63 240 5950134.14 643305.36 7027126336 -148.84095073 560342 82.72 32392 4560.03 4869.18 -1080.59 1850.77 1798.00 143706 -1080.59 183 695019096 64325414 70.27144583 -148.84135477 5698.29 6325 32493 4623.12 4712.27 -1129.75 1935.29 1882.49 150580 -1129.75 1.10 595026774 64320387 70.27163361 -14884176246 5792.98 62.85 325.58 4686.03 4755.18 -117786 201969 1968.84 1575.16 -1177.86 0.74 6950336.16 643154.25 7027182306 -148.84214158 5888.03 62.77 326.34 4709.47 4798.62 -1225.79 210424 205133 164480 -1225.79 0.24 695040486 643104.99 70.27201330 -148.84262933 5982.55 61.98 32584 4753 29 4842.44 -127324 2187.98 2135.01 1713.81 -127324 088 595047294 643006 23 70.27220180 -14864291312 607773 6191 32640 479806 4887.21 -1320.19 2271.98 2218.92 1783.46 -1320.19 0.71 5950541.67 64300796 7027239206 -14884329287 Drilling Office 2.6.1166.0 Prudhoe Bay Unit-WOA\Y-PAD\Y-19\Y-19A\Y-19A 1/3/2013 4:50 PM Page 4 of 7 Ili se Comments MD Incl ASIC True TVDSS TVD V5EC AHD Closure NS EW DLS Northing Emil. Latitude Longitude (8) 7) 7) NO (5) (T) (R) (a) (N) (5) 7/1065) MUS) (SUS) (') (7 6171.11 6415 326.16 484068 492983 -136668 2355.73 2302.58 1853.12 -136268 2.39 595061043 642960.14 70.27258235 -146.84366899 6267.34 6664 32461 488049 496964 -141608 244267 2389.48 1924.66 -1416.08 2.99 5950681.00 642909.39 70.27277777 -148.84406856 6361.93 67.58 322.86 491229 500644 -146762 2529.81 2476.61 199491 -1467.62 1.97 5950750.26 642856.51 70.27296968 -148.84448655 6456.28 6284 32226 495307 504222 -1520.70 2617.11 2563.89 206423 -152070 0.65 5950818.53 642802.12 70.27315901 -148.84491487 6550.92 6733 32268 4989.16 507831 -157405 270460 265137 2133.56 -157405 062 5950886.82 64274745 70.27334840 -148.84534262 664594 6390 323.99 502839 5117.54 -162579 2791.13 273/89 220292 -1625.79 385 595095516 64269439 70.27353784 -148.84576509 673999 6372 322.77 5069.90 515905 -1676.13 2875.53 282228 227065 -1676.13 1.18 595102192 642642.76 70.27372285 -1..84617234 6835.24 6104 323.05 511405 520320 -172703 2959.91 2906.67 2337.97 -1727.03 283 69510..24 642590.50 70.27390672 -148.84658408 6929.90 61.11 322.39 515984 524899 -1777.21 3042.76 2989.51 2403.89 -1777.21 0.61 5951153.18 642539.16 70.27408678 -148.84699008 7024.86 62.08 322.08 5205.01 529416 -1828.36 3126.29 3073.01 2469.92 -1828.36 1.06 5951218 21 642486.75 70.27426714 -1..84740394 7119.57 6231 322.50 5249.19 533834 -187961 3210.07 3156.77 2536.19 -1879.61 046 595128349 642434.25 7027444817 -14884781851 7214.54 62 39 321.14 629326 5382.41 -1931.61 329419 3240.86 2602.32 -1931.61 1.27 5951348.00 642381.00 70.27462878 -148.84823921 730962 62.54 320.51 5337.22 5426.37 -1984.86 3328.50 3325.08 2267.68 -1984.86 0 61 5951412 92 642326 50 70.27480730 -148.84867010 7403.80 81.64 324.19 538131 5470.46 -2035.70 3461.72 3408.28 2733.55 -2035.70 3.58 5951477.79 842274.42 70.27498721 -14884908138 7498.54 59.50 327.10 5421.87 5517.02 -2082.27 3544.22 3490.71 2801.64 -2082.27 3.50 5951544.98 642226.55 70.27517320 -148.84945822 759338 5693 330.69 5477.83 5566.98 -212393 362483 357093 2870.63 -2123.93 4.21 5951613.14 642183.58 70.27536183 -14884979536 7687.62 54.58 334.84 5530.88 5620.03 -2159.60 3702.71 3647.82 293984 -2169.60 4.41 5951681.66 642146.59 70.27555071 -148.85008404 778302 54.44 33482 5586.26 5675.41 -2192.64 3780.39 372406 3010.14 -2192.64 0.15 5951751.31 642112.21 7027574274 -148.85035142 7877.83 53.05 33423 5642.33 5731.48 -2225.52 385684 3799.24 3079.16 -2225.52 1.55 595181068 64207802 70.27593127 -148.85061753 797188 49.27 33303 5701.30 5790.45 -2258.03 393008 387149 3144.79 -2268.03 4.14 5951884.67 642044.26 70.27611053 -14885088067 8066.55 45.12 331.66 5765.62 5854.77 -2290.24 3999.52 39..26 3206.31 -2290.24 4.51 5951945 55 642010.88 70.27627857 -148.85114132 816198 42.10 334.37 5834.71 5923.86 -2320.13 4065.33 4005.34 3284.93 -2320.13 3.72 5952003.58 641979.87 70.27643869 -14885138329 8255.85 39.30 33961 590589 599504 -2344.11 4126.51 4065.12 3321.19 -2344.11 4.70 5952069.37 64195481 7027659238 -14885157740 8351.84 36.65 345.03 5981.58 6070.73 -2362.11 4185.54 4121.45 3377.39 -2362.11 444 5952115.21 641935.14 70.27674589 -148.85172314 8382.11 36.12 348.17 6005.95 6095.10 -2366.28 4203.50 4138.15 3394.85 -236628 640 5952132.59 64193124 70.27679359 -148.85175686 841282 35.81 351 92 6020.84 6119.99 -2369.39 4221.48 4154.47 3412.57 -2369.39 7.34 5952150 24 641927.79 70 27684198 -148 85178208 8445.26 35.25 352.72 6057.27 6146.42 -2371.90 424029 417122 3431.20 -2371.90 1.81 5952168.82 641924.92 70.27689289 -148.85180246 8534.58 34.29 35938 6130.67 621982 -2375.44 4291.19 4215.06 348195 -237544 4.38 595221948 64192041 70.27703152 -148.85183123 863366 3157 612 6213.85 6303.00 -2372.98 4345.00 4258.17 3535.67 -2372.98 4.60 5952273.24 641921.84 70.27717830 -1..85181143 866733 30.60 8.78 6242.69 6331.84 -2370.73 436238 427124 3552.91 -2370.73 4.99 5952290.52 641923.76 70 27722538 -1..85179329 8699.18 2906 12.91 6270.32 635947 -2367.76 4378.22 4282.55 356846 -2367.76 8.06 59523.12 64192643 70.27726788 -1..85176934 873061 28.34 1604 6297.89 6387.04 -2364.00 439331 429266 358307 -2364.00 5.30 5952320.80 641929.91 70.27730779 -148.85173890 876193 27.60 20.08 6325.54 6414.69 -2359.45 4408.01 4301.83 3597.05 -235945 643 5952334.88 64193420 70.27734597 -148.85170213 879333 26.31 25.58 6353.53 644268 -2353.94 442225 4309.80 3610.17 -235394 903 5952348.08 641939.45 70.27738183 -146.85165761 8825.13 26.01 2800 638207 6471.22 -2347.62 443627 4316.85 3622.68 -2347.62 348 5952360.72 641945.52 70.27741602 -14885160654 885606 25.38 2967 6409.94 6499.09 -2341.16 4449.68 4323.21 3634.43 -2341.16 3.10 5952372.58 641951 76 70.27744812 -148.85155427 8887.06 23.95 38.58 6438.12 6527.27 -2334.12 4462 60 4328.51 3645.26 -2334.12 10.38 5952383.55 641958.59 70.27747771 -148.85149735 8923.17 23.64 38.85 6471.17 656032 -2325.23 4411.14 4333.43 3656.76 -2325.23 2.77 6962395.21 641967.26 7027750914 -14885142546 901439 23.23 46.87 655492 664407 -2300.66 4513.29 434274 3683.25 -2300.66 3.50 5952422.17 641991.31 70.27758154 -14885122684 9109.32 25.37 56.38 6641.46 6730.61 -2270.26 4562.30 4347.47 3707.62 -2270.25 432 5952447.11 642021.25 70.27764812 -148.85098089 9204.05 2879 83.86 6726.58 6815.73 -223437 4593.88 4346.79 3728.66 -2234.37 421 5952468.74 642056.72 70.27770537 -14885060069 9298.30 29.70 71.57 680962 6898.17 -2193.13 4638.43 4340.18 3745.31 -2193.13 4 95 5952486.27 642097.63 70.27775116 -148.85035712 9392.93 31.87 78.41 689093 698008 -2146.59 4686.84 4328.38 3758.59 -2146.59 3.48 5952500.45 642143.89 70.27778749 -148.84998071 9487.58 3443 81.12 6970.18 705933 -200585 4738.57 431218 3768.60 -209585 384 595251142 642194.43 70.27781486 -14884957027 9582 47 38.00 83.74 704673 713588 -2040.29 4794.62 4291.90 3775.93 -2040.29 4.10 5952519 81 642249 84 70.27783492 -148.84912084 9593.41 39.37 84.23 7055.27 714442 -203349 4801.45 4289.30 3776.84 -2033.49 12.83 5952520.66 642256.82 70.27783688 -148.84906583 9628 07 41.80 85.64 7081.59 7170.74 -2011.03 4824.00 4280.45 3778.63 -2011.03 7 49 5952523 07 642279 04 70.27184232 -148.84888416 9661.69 43.54 8521 7106.31 719546 -198832 4846.79 4271.44 3780.45 -1988.32 525 5952525.33 642301.71 70.27784730 -148.84870043 9728.04 44.68 86.37 715395 72.10 -194226 4892.97 4253.21 3783.53 -194226 2.11 595252960 642347.89 7027785659 -14884832788 9801.35 45.95 87.35 720550 7294.65 -1890.22 4945.09 423225 378668 -1890.22 1.98 5952533.44 64239966 70.27786441 -1..84796690 9822.89 4701 8769 722033 730948 -187462 4960.71 4225.90 378736 -187462 5.05 595253442 64241525 7027786626 -14884778067 9916.38 4203 89.93 728467 737382 -1806.80 5028.54 4197.64 378878 -180680 2.03 5952537.14 642483.02 7027787019 -14884723211 9961.69 4475 91.71 7316 49 7405.64 -1774.55 5060.19 4183.35 3788.32 -1774.55 307 5952537.30 642515.27 70.27786896 -148.84697123 10011.87 43.97 93.16 735236 7441.51 -173950 509588 4167.25 3786.83 -1739.50 2.55 5952536.48 642550.34 70.27788492 -1..84608769 10106.79 45.12 98.30 7420.04 7509.19 -1673.30 5162.44 413395 3780.16 -1673.30 3.99 5952531.08 642616.65 70.27784673 -1..84615215 • 1020175 4635 102.76 748233 7575.48 -1606 48 5230.42 4095.91 3767.71 -160648 3.60 5952519.92 642683 69 7027781276 -148.84561162 • 10296.21 45.94 10246 7551.78 7640.93 -1540.01 529854 4056.53 3752.84 -1540.01 0.49 595250633 84275043 70.27777217 -148.84507389 1039105 45.57 10185 761795 7707.10 -1473.57 5306.47 4018.57 373865 -1473.57 073 5962493.41 642817.12 70.27773344 -148.84453642 1048582 45.51 101.33 7684.33 7773.48 -1407.29 543412 3982.13 3725.18 -1407.29 0.25 5952481.21 64288365 70 27769667 -14884400020 10580.34 45.61 100.80 7750.57 7839.72 -1341.11 550154 3947.06 371224 -1341.11 0.40 595246054 64295005 70.27766134 -1..84346488 10675.22 45.55 9981 7817.03 7906.18 -1274.50 5569.25 391347 3700.12 -1274.50 0.75 5952458.71 64301688 70.27762829 -148.84292601 10769.05 45.09 100.58 788301 7972.16 -1208.84 583597 3881.36 368832 -1208.84 076 5962448.17 643082.75 70.27759606 -14884239483 10864.45 45.09 101.08 7950.36 8039.51 -114248 570353 384908 367562 -114248 0.37 5952436.75 64314934 70.27756141 -14884185801 10958.23 45.08 101.22 8016.58 810573 -1077 32 576904 3817.93 3662.78 -107732 0.11 5952425.16 643214.73 70.27752635 -148.84133093 11053.88 4455 101.04 8084.43 8173.58 -1011.17 5837.36 3787.25 364077 -1011.17 0.57 5952413.42 643281.11 7027749082 -1..84079583 11148.18 4447 101.08 8151.66 8240.81 -946.31 590345 3758.18 3837.09 -946.31 0.09 595240199 643346.20 70.27745620 -148.84027111 11242.09 4447 100.99 821869 8307.84 -88172 596925 3730.20 382449 -881.72 0.07 5952390.63 64341101 70.27742182 -148.83974866 Drilling Office 2.6.1166.0 Prudhoe Bay Unit-WOA\Y-PAD\Y-19\Y-19A\Y-19A 1/3/2013 4:50 PM Page 5 of 7 • • Comment MD Incl Azim True TVDSS TVD VSEC AHD Closure N8 EW DLS Northing Eaeting Latitude Longitude 181 NI in I6) (61 16) (6) (61 (61 (8) 011008) IfU$) ICUs) fl (9 1133736 44.61 100.64 8286.66 8375.81 -816.14 803602 370302 361196 -816.14 026 585237937 64347681 70.27738761 -148.83921818 • 1143337 44.46 100.30 8355.15 844430 -74999 610329 3677.04 359934 -749.89 025 6952368.41 643543.18 70.27735423 -14883868303 1152767 44.68 10004 842233 851148 -684.86 616947 3652.83 3588.05 -684.85 030 5952357.98 64360853 70.27732233 -14883815611 1162220 4420 98.47 8489.83 8578.88 -619.53 8235.65 363066 357741 -61953 127 595234859 643674.03 70.27729325 -14883782772 11718.81 4432 96.61 8559 02 864817 -652.69 6303.08 3611.11 3568.56 -552.69 135 5952341.03 643741.02 70.27726910 -14883708707 • 1181282 44.27 85.42 862631 8715.46 -487.40 636873 3594.88 3561.88 48740 0.89 6952335.40 643806.42 70.27725032 -148.83655894 1189164 44.54 95.80 8882.62 8771.77 -43251 6423.88 358259 355638 -432.51 038 5952331.16 643861.41 70.27723586 -148.83611487 • 1193312 45 05 95.00 8712.05 880120 -403.41 6453.11 3576.51 355369 -403 41 190 5952329.02 643890.55 70 27722849 -148 83587948 7-0s9 1198000 4543 04.66 8730.98 882013 -384.30 6472.10 9572.82 9552.08 584.30 1.66 595232778 043909.60 70.27722911 -14883572583 11963.58 45.48 84.81 673349 882264 58185 6474 74 357234 3551 87 581.85 168 5952327.62 64391214 7027722354 -148.83570506 1199499 5081 94.24 8754.44 884359 358.53 6498.13 3568.13 355007 358.53 1699 5852328.2] 64393549 7027721863 -14883561645 12026.43 58.40 93.90 6]]308 8862.24 33329 6523.43 3563.90 3548.28 333.29 17.80 5952324.96 643960.75 70.27721373 -148.83531233 12058.28 6239 9358 878930 8878.45 30595 6550.83 3559.67 354649 305.95 18.83 5952323.70 643988.12 70.27720886 -148.83509115 12090.44 6751 9247 880291 8892.06 -276.87 6579.95 355576 3544.96 -276.87 16.22 595232273 64401723 70.27720468 -14883485589 12121.11 70.19 90.12 881398 8903.13 -24828 6808.56 3563.01 354432 -2..28 11.29 595232263 64404582 70.27720293 -148.83462481 12152.04 72.75 91.69 882381 8912.96 -21898 6637.88 3550.61 354386 -218.96 9.57 5952322.73 044075.14 70.27720186 -14883438744 1218507 76.14 9300 883266 8921.81 -187.17 6669.88 3547.49 3542.55 -187.17 1095 595232203 64410695 70.2]]19810 -14883413031 12216.44 79.78 9395 883921 892836 -15655 6700.37 3544.15 354069 -156.55 11.98 5952320.76 644137.59 7027719301 -14883388264 12251.15 84.99 94.69 884380 8832.95 -12226 6734.76 3540.21 3638.10 -122.26 15.16 595231883 644171.83 70.27718594 -148.833110523 12280.23 89.60 96.22 8845.18 8934.33 93.35 6763.80 3536.57 3535.34 -8335 1670 595231662 64420088 70.27717839 -148.83337140 12313.95 94.98 94.44 8843.83 8932.98 -59.82 679748 3532.]1 353221 -5982 1680 5952314.13 644234.47 70.27716984 -148.83310014 12347.09 101.48 91.12 883909 892824 -27.08 683026 3530.71 3530.61 -27.08 21.97 5952313.17 64426723 70.27716548 -14883283533 12374.98 103.84 88.05 883297 8922.12 0.13 6857.47 3530.80 3630.80 0.13 13.67 595231388 644294.42 70.27716601 -148.83261526 1240675 10550 84.20 8824.93 8914.08 30.78 688820 353301 3532.88 30.78 1283 5952316.54 844325.03 70.27717167 448.83238728 1243830 108.08 84.52 8815.81 8904.96 60.84 691841 353637 3535.85 60.84 823 595232009 644355.02 70.27]179]8 -148.83212415 12470.76 110.11 87.09 8805.19 889434 91.43 6949.08 3539.27 3538.09 91.43 9.75 595232292 844385.56 7027718592 -14883187673 1250136 11266 85.67 8794.04 8883.19 119.86 697757 354192 363989 11986 939 595232526 644413.95 70.27719083 -148.83164673 12533.68 111.34 8680 878193 8871.08 149.76 7007.53 3545.02 3641.86 149.76 5.21 595232780 644443.80 70.27719620 -14883140486 12585.15 108.83 8725 8771.12 886027 179.28 703709 354792 3543.39 17928 809 595232990 64447328 7027720038 -14883116612 12600.82 105.06 8777 8760.73 884988 21336 707120 355128 3644.87 213.36 10.66 5952332.03 644507.33 70.27720442 -148.83089043 12632.54 10264 9144 8753.13 8842.28 244.15 710200 3553.47 3545.08 24415 13.58 595233283 644538.10 ]0.27]20499 -148.83064137 1266248 100.74 93.62 8747.07 8836.22 27344 713132 3554.34 354381 27344 930 5952332.12 644567.41 ]027]20151 -148.83040446 1269398 9798 94.90 8741.94 883109 30443 716239 355458 3541.52 30443 9.77 595233043 644598.44 ]0.2]]1952] -148.83015378 12]26.]0 96.38 95.11 8738.14 8827.29 33880 7194.89 355468 353869 336.80 7.97 5952328.22 644630.85 70.27718752 -148.82989190 12755.23 9341 93.47 8735.95 882510 365.16 7223.33 3655.36 3536.56 365.16 897 5952328.84 64465925 7927718171 -148.82965247 1278720 8965 93.99 8735.10 8824.26 397.05 725529 3556.71 3534.48 39705 1187 5952325.17 644691.17 70.27717603 -148.82940455 1281768 87.35 9521 873589 882594 42742 7286.75 3657.81 3532.04 42742 864 595232331 644721.58 70.27716935 -148.82915889 1285027 87.51 95.02 8737.36 8826.51 45986 7318.31 355897 3529.14 459.85 0.76 595232103 644754.05 70.27716141 448.82889659 1288193 90.30 95.19 8737.96 8827.11 49137 734996 356039 352632 491.37 883 695231882 644786.82 70.27715371 -148.82864158 1291367 9262 9330 8737.15 8826.30 523.01 7381.69 3662.57 3523.87 623.01 943 695231708 64481730 70.27714729 -148.82838565 12944.74 9294 90.79 8735.64 8824.79 55402 ]412.]2 3668.16 352286 554.02 8.13 5952316.56 644848.32 70.27714426 -148.62813480 13021.75 91.53 88.90 873264 882179 630.97 7489.67 3679.13 352307 630.97 3.06 595231825 644925.24 70.27714481 -148.82751238 13116.72 90.31 90.06 8731.12 8820.27 725.92 758463 359793 352394 725.92 1.77 595232094 645020.15 70.27714718 -148.82674433 1321083 9045 90.27 8730.49 881964 819.82 7678.54 3617.79 352388 819.82 028 595232248 645114.04 70.27714642 -148.82598471 13306.64 90.13 90.88 873001 8819.16 91583 777454 3639.83 3522.73 915.83 070 5952323.37 645210.04 70.27714380 -148.82520813 13402.00 9039 90.44 8729.58 8618.73 1011.18 788990 366195 3521 65 1011.18 0.52 695232412 645305.38 70.27714082 -148.82443682 1349747 8997 90.30 872928 881843 1106.85 7965.37 3890.85 352103 1106.65 046 595232533 645400.84 7027713909 -14882366459 1359178 8924 91.22 872993 881908 1200.95 8059.68 371903 3519.78 1200.95 125 5952325.89 645495.14 70.27713564 -148.82290181 13687.06 88.51 92.79 873180 8820.95 1296.16 8154.94 374772 351645 1296.15 182 5952324.38 645590.37 70.27712849 448.82213174 13781.81 8805 9521 873464 8823.79 1390.61 824965 3775.29 350985 139061 260 5952319.59 64588495 7027710840 44882136759 13876.65 90.57 96.52 873578 882493 148494 8344.47 3802.12 3600.16 148494 299 5952311.71 645779.43 70.27708187 -148.82060459 1397145 9407 9727 873196 8821.10 1578.98 843918 3629.46 3488.79 1578.96 3.78 5952302.15 64687365 70.27705076 -148.81984407 14066.36 97.05 96.76 872276 8811.90 1672.71 853383 3858.66 347725 1672.71 3.19 595229241 84596759 70.27701919 -148.81908578 14160.69 96.97 94.70 8711.24 8800.39 1765.86 8627.26 3891.81 3467.90 176586 2.17 596228486 846060.80 70.27699360 -14881833230 14255 33 9571 91.42 8700.78 878993 185977 872132 393069 3462.89 1859.77 3.69 5952281 64 64615488 70.27697983 -14881757265 14360.77 92.29 89.81 8694.13 878328 1954.96 8816.51 3975.72 3461.87 1954.90 396 5962282.46 648250.06 70.27697688 -14881680271 14446.75 89.03 87.40 8093.03 8782.18 2049.88 891147 4025.24 3464.18 204988 427 595228668 64834492 70.27698323 -14881603486 14540.58 89.31 89.00 8694.41 8783.56 214465 900629 407885 3467.16 214465 1.71 5952291.37 648439.61 70.27699129 -14881526826 14636.57 89.38 92.36 869550 878465 2240.82 910228 412718 3466.02 224062 3.50 5952292.08 646535.57 70.27898810 -148.81449202 14731.06 89.35 93.73 8696.65 8]85.]0 233497 919676 417500 3461.00 233497 145 595228887 64662999 ]02769]431 -14881372885 • 14825.36 90.93 94.77 8696.32 8786.47 2429.00 929106 422259 345401 2429.00 201 595228368 848724.13 70.27695514 -148.81296821 1492134 9441 93.17 8691.86 8781.00 2524.83 938692 427296 344737 252483 3.99 595227888 846819.86 70.27693892 -148.81219470 15015.92 93.58 91.16 8685.28 8774.41 2618.81 948127 432649 3443.81 261891 229 5952277.13 648914.18 ]027692]09 -148.81143211 15110.85 90.61 88.09 8681.79 877094 2713.75 9576.12 438504 344443 271376 4.50 595227957 64700899 ]0276928]1 -148.81066493 15206.19 87.76 8803 8683.15 877230 280894 967144 444837 344932 280894 3.69 5952286.28 847104.06 7027894196 -14880989493 15300.89 8654 8468 8887.85 877700 2903.21 976602 451435 3456.98 290321 1.92 596229575 64719816 ]0.276962]9 -148.80913238 1539563 8681 8479 8693.35 8782.50 2997.39 9860.60 4582.04 3465.68 2987.38 031 5952308.23 647292.15 ]0.2]698640 -148.80837052 1548981 88.58 88.42 8697.14 8786.29 3091.31 9954.70 4848.18 3471.23 3091.31 429 5952313.80 847385.93 70.27700151 -148.80761079 Drilling Office 2.6.1166.0 Prudhoe Bay Unit-WOA\Y-PAD\Y-19\Y-19A\Y-19A 1/3/2013 4:50 PM Page 6 of 7 • . Comments MD Incl Adm True MSS TVD VSEC AHD Closure NS EW DLS Northing Eating Latitude Longitude (ft) CI CI (ft) (R) (fl) (R) M) (fl) (R) C/tots) (SUS) MUS) (*) (1 1558665 9141 90.72 869715 8788.30 3188.13 10051.54 4713.67 347196 3188.13 377 5952316.18 647482.72 70.27700338 -148.80682781 15681.52 9435 9217 869238 8781.53 3282.84 1014627 4776.50 3469.67 3282.84 345 595231561 64757744 7027699675 -148.80606153 15775.17 94.42 93.45 868522 877437 337610 1023965 4837.79 3464.99 3376.10 136 595231282 647670.77 70.27698413 -148.80530716 15814.59 93.16 91.67 8682.61 8771.76 3415.39 1027898 486404 3463.23 3415.39 5.52 595231182 647710.08 7027697928 -148.80498933 4-t/2"Lir/7D a 1585000 03.16 91.67 8680.66 8769.81 • 345079 10914.34 488019 3462.10 9450.73 000 5952311.47 647745.44 70.27697643 -148.80470346 Survey Error Model: ISCWSA Rev 0'^3-4)95.000%Confidence 27955 sigma Survey Program: MD From MD To EOU Frey Hole Six0 Casino Diameter DescriptionnIRI (ft) (fl) (Int (in) Survey Tool Type Borande l Survey 0.000 3040.610 Act Sins 17.500 13.325 GCT-MS V-19/7-19 3040.610 3205 000 Act S . 6500 7.000 GYD-GC-SS 7-19A V-19A 3205.000 11891840 Act Sine 8.500 7 /000 MWLMIFRNMS V-19A IV-199 11891640 12026 430 Act Sbte 6.125 4.500 INC0TREND V-19A t7-19A 12026430 15814 590 Act Sins 6.125 4.500 MW LIFRDMS V-19A/7-19A BLIND 15850000 Act Sins 6.125 4.500 BLIND V-19A I5-19A Legal Description: Northing(r) Eating(X) Surface'.3816.5 FSL 4566 FEL S33 T118 RISE UM 594878400 644362000 BHL'.1998 FSL 2277 FEL 27 T118 R13EUM 5952311.470 647745.440 Final Definitive Survey Verified and Signed-off All targets and/or 10044 position objectives have been achieved. 0 Yes 0 No I have checked to the best of my ability that Si.following data is correct: ❑. $g. $Coordinates ❑, Doclhatbn&Convergence )J Survey Tod Codes SLB DE: Client Representative: Dale'. Drilling Office 2.6.1166.0 Prudhoe Bay Unit-WOA\Y-PAD\Y-19/Y-19A\Y-19A 1/3/2013 4:50 PM Page 7 of 7 Guhl, Meredith D (DOA) From: Lastufka, Joseph N [Joseph.Lastufka@bp.com] Sent: Thursday, April 10, 2014 4:14 PM To: Guhl, Meredith D (DOA) Cc: Davies, Stephen F (DOA) Subject: RE: Reporting Compliance PBU Y-19A, PTD 212-020 Meredith, You are correct that Rahul has moved both from Anchorage and BP. I apologize for any delay, I will try and track down whoever can help to make sure that all logs ran are delivered ASAP. Thanks, Joe Lastufka From: Guhl, Meredith D (DOA) [mailto:meredith.quhl@alaska.qovl Sent: Thursday, April 10, 2014 4:00 PM To: Lastufka, Joseph N Cc: Davies, Stephen F (DOA) Subject: FW: Reporting Compliance PBU Y-19A, PTD 212-020 Joe, I haven't heard back regarding the compliance request below.Given how promptly BP has responded to my other requests I'm wondering if Rahul still works at the Anchorage office? If Rahul is not in Anchorage, could you please forward this to the appropriate lead person,as the data is required to complete the compliance review of this well. Please advise. I will extend the date below as needed. Thank you, Meredith Meredith Guhl Petroleum Geology Assistant Alaska Oil and Gas Conservation Commission meredith.guhl@alaska.gov Direct: (907) 793-1235 From: Guhl, Meredith D (DOA) Sent: Tuesday, March 11, 2014 4:14 PM To: 'rahul.madarapu@bp.com' Cc: Davies, Stephen F (DOA) Subject: Reporting Compliance PBU Y-19A Dear Mr. Madarapu: 1 I am completing the final compliance check for PBU Y-19A, PTD 212-020,API 50-029-21857-01-00, completed on 12/28/2012. On form 10-407, in box 21,the following logs were listed as obtained: MWD/GR/RES/NEU/AZI Density/AZI caliper, CBL, MWD/GR/RES/NEU/DEN. At this time I have only received a Memory Injection Profile log.As required by Statute AS 31.05.030(d)(2)(B)and Regulation 20 AAC 25.071 and noted on form 10-407, electronic and printed copies of the logs are required as part of the well completion report. Please submit the MWD/GR/RES/NEU/AZI Density/AZI caliper, CBL, MWD/GR/RES/NEU/DEN logs in both electronic and paper form by April 11,2014. If you have any questions, please contact me. Sincerely, Meredith Guhl Meredith Guhl Petroleum Geology Assistant Alaska Oil and Gas Conservation Commission meredith.guhl@alaska.gov Direct: (907)793-1235 2 Guhl, Meredith D (DOA) From: Guhl, Meredith D (DOA) Sent: Tuesday, March 11, 2014 4:14 PM To: 'rahul.madarapu@bp.com' Cc: Davies, Stephen F (DOA) Subject: Reporting Compliance PBU Y-19A Dear Mr. Madarapu: I am completing the final compliance check for PBU Y-19A, PTD 212-020,API 50-029-21857-01-00, completed on 12/28/2012. On form 10-407, in box 21,the following logs were listed as obtained: MWD/GR/RES/NEU/AZI Density/AZI caliper, CBL, MWD/GR/RES/NEU/DEN. At this time I have only received a Memory Injection Profile log. As required by Statute AS 31.05.030(d)(2)(B)and Regulation 20 AAC 25.071 and noted on form 10-407,electronic and printed copies of the logs are required as part of the well completion report. Please submit the MWD/GR/RES/NEU/AZI Density/AZI caliper, CBL, MWD/GR/RES/NEU/DEN logs in both electronic and paper form by April 11,2014. If you have any questions, please contact me. Sincerely, Meredith Guhl Meredith Guhl Petroleum Geology Assistant Alaska Oil and Gas Conservation Commission meredith.guhl@alaska.gov Direct: (907)793-1235 1 1.G 1 r1 ( M _ 0 — o F�3 g LID a0) c H 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 p 00000000000000000 u a a , CD MI 'Y r 0 )*• o oY otl )v"t4 a) , fil o a PI rh C.) cam a) „ ,cc t � 01 tn o ,� //y�.� ,--t •^4 M M M C) M M CO N , N N t ni E Ni cji Q W rel '� 0 - a- - r T a- a- r a- '' ) NCIO 4$ ^i C C d CU (� .L: al cts .44 p p ti g LL LL ' ' Z CA N -� 0 v) .v s .„.1 M O ch In O 0) N N N 0 N C) CO 1n CO _N c ���jj, 71 1- ' r- a-- a- a- '- N N N N X 11 Q f-1 co N ,1114:1- i� 0 1 �f I 0 z H o 0 LL O. 0 O 0 N N Z Z x CL o LL LL 0 LL LL LL LL LL 0 VI LL LL O _101:117- C4 a U Ce a 1X re 0 0 O O ,Jaa Waan, aa w w rI- o ' o 0 0_ CY CC X o vi viCt vi CC 1X - w ui w 0 o d M O 00 a w w 2 w 2 z E I- a 2 0 W• W W W > > W > W O W U) W O D 0 0 2 2 2 J J J 2 J E 2 2 O J u) n. J J Z W M N ai Cr a X X ei V' W XXXXXXX _ d- o - O `— lJ C _ I ea , --- a— R k...(,,,--(. „...‘---r-,- — - ,,_.c). W 2 CO N M !, •O) r' Co 0) Co Co Co 0) rs CA > w o Coro 0 0 Co N aa-- 0 0 N z o 0 0 0 0 0 O o 0 0 0 0 0 0 0 0 0 00 0 0 > {ay'j CL 0 0 0 0 0 0 0 0 0 0 00 W 0 0 0 0 0. 43 o v) O ii. 7 7 ti o o v U 7 0 0 2 Y Y o O > �- 0 Z coN W (� D CO Q Q m W W O U Q W W LL W m m N 0 v CO C v MO m U m m U U U U CO m U U U Q CO m U U c o C to -0 Ln co n Ln N L-,-) > rn rn R ro m rn u v o Q d 6 CC N Q J W Q m m O N co Q N Q m a- C) CO ,, O N a, rA �. N o t It a- N a- C) a- () a- O ,_ Z N N an- r 4 'I `) 0) 'E c a w E tto u Q a- 0 0 N N N O N a- C) a- a- a- 0o N 2 J v rz 03 z ro m ” Z CJ O a > > IV > r 0 N a as th th o a� v m o 0. to "E w to t O w t N ro d U c"n 8 Vi a C� 0 1 x a m 0 Q STATE OF ALASKA JAN 2 2 2013 ALASKA OIL AND GAS CONSERVATION COMMISSION AOGCC WELL COMPLETION OR RECOMPLETION REPORT AND LOG 1a. Well Status: .®Oil 0 Gas 0 SPLUG 0 Other 0 Abandoned 0 Suspended lb. Well Class 20AAC 25.105 20AAC 25.110 0 Exploratory 0 Stratigraphic 0 GINJ 0 WINJ 0 WAG 0 WDSPL 0 Other No.of Completions One • • 0 Development 0 Service 2. Operator Name: 5.Date Comp.,Susp.,or Aband.: 12. Permit to Drill Number: BP Exploration(Alaska) Inc. 12/28/2012 • 212-020 ' 3. Address: 6.Date Spudded: 13. API Number: P.O. Box 196612,Anchorage,Alaska 99519-6612 11/30/2012 • 50-029-21857-01-00' 4a. Location of Well(Governmental Section): 7.Date T.D.Reached: 14. Well Name and Number: Surface: 12/21/2013 • PBU Y-19A ' 1462' FNL,455' FEL, Sec. 33,T11 N, R13E, UM 8. KB(ft above MSL): 89.15' 15. Field/Pool(s) Top of Productive Horizon: 2089' FSL,835' FEL, Sec.28,T11 N, R13E, UM GL(ft above MSL): 49,74' Prudhoe Bay/Prudhoe Bay ' Total Depth: 9.Plug Back Depth(MD+TVD) 1999'FSL, 3001'FWL, Sec.27,T11 N, R13E, UM 15835' 8771' 4b. Location of Well(State Base Plane Coordinates,NAD: 10.Total Depth(MD+TVD) 16. Property Designation: Surface: x- 644362' y- 5948784 • Zone- ASP4 • 15850' 8770' • ADL 028287' TPI: x- 643907 y- 5952328 Zone- ASP4 11.SSSV Depth(MD+TVD) 17. Land Use Permit: Total Depth:x- 647744 y- 5952312 Zone- ASP4 None 18. Directional Surve 19.Water depth,if offshore: 20. Thickness of Permafrost(TVD): y ®Yes ❑No (Submit electronic and printed information per 20 AAC 25.050) N/A ft MSL 1997' 21. Logs Obtained (List all logs here and submit electronic and printed information per 20 AAC 25.071): 22.Re-Drill/Lateral Top Window MD/TVD: MWD/GR/RES/NEU/AZI Density/AZI caliper, CBL, MWD/GR/RES/NEU/DEN 3030' • 3029' • 23. CASING,LINER AND CEMENTING RECORD 1 SETTING DEPTH MD SETTING DEPTH ND HOLE AMOUNT CASING WT.PER FT. GRADE TOP BOTTOM TOP BOTTOM SIZE CEMENTING RECORD PULLED 20" Insulated Conductor Surface 110' Surface 110' 8 cu yds Concrete 13-3/8" 68# L-80 31' 2704' 31' 2704' 17-1/2" 1863 cu ft Arctic Set III, 1860 Arctic Set II 9-5/8" 47# L-80 29' 3030' 29' 3029' 12-1/4" 1910 cu ft Class'G' 7" 26# L-80 2889' 11960' 2889' 8820' 8-1/2" 121 sx LiteCrete,91 sx Class'G' 4-1/2"x 3-1/2" 12.6#/9.2# L-80 11811' 15848' 8714' 8770' 6-1/8" 120 sx Class'G',Swell Packers 24. Open to production or injection? 0 Yes 0 No 25. TUBING RECORD If Yes,list each interval open • SIZE DEPTH SET(MD) PACKER SET(MD/ND (MD+TVD of Top&Bottom;Perforation Size and Number): ) 4-1/2"x 3-1/2"Sliding Sleeves w/Swell Packers 4-1/2", 12.6#, 13Cr85 11819' 11694'/8630' 26. ACID,FRACTURE,CEMENT SQUEEZE,ETC. 13005' 8822' WAS HYDRAULIC FRACTURING USED DURING COMPLETION?❑Yes 0 No ' 13306' 8819' 13519' 8818' • DEPTH INTERVAL(MD) AMOUNT AND KIND OF MATERIAL USED 14390' 8782' 7 2200' Freeze Protect w/152 Bbls of Diesel 15096' 8771' 15628' 8785' .q.i;4 •, �. 27. PRODUCTION TEST Date First Production Method of Operation(Flowing,Gas Lift,etc Not on production N/A Date of Test Hours Tested. Production For OIL-BBL: GAS-MCF: WATER-BBL: CHOKE SIZE: GAS-OIL RATIO: Test Period Flow Tubing Casing Press: Calculated OIL-BBL: GAS-MCF: WATER-BBL: OIL GRAVITY-API(CORR): Press. 24-Hour Rate 28. CORE DATA Conventional Core(s)Acquired? 0 Yes ®No ` Sidewall Core(s)Acquired? ❑Yes 0 No- If Yes to either question,list formations and intervals cored(MD+TVD of top and bottom of each),and summarize lithology and presence of oil,gas or water (submit separate sheets with this form,if needed). Submit detailed descriptions,core chips,photographs and laboratory analytical results per 20 AAC 250.071. None RBDMS JAN 2 8 2013 ,11 Form 10-407 Revised 10/2012 VL // Z 4- /`� CONTINUED ON REVERSE 6s i�/�-/i f Submit Original Only 29. GEOLOGIC MARKERS(List all formations a' ^rkers encounter 30. FORMATION TESTS NAME ND Well Tested. J Yes ®No Permafrost Top If yes,list intervals and formations tested,briefly summarizing test Permafrost Base results. Attach separate sheets to this form,if needed,and submit detailed test information per 20 AAC 25.071. Ugnu 4290' 4070' West Sak 7250' 5399' None Coleville Mudstone 7980' 5796' HRZ 9789' 7286' Kingak 10211' 7582' Sag River 11956' 8817' Shublik A 11995' 8844' Shublik B 12059' 8879' ShublikC 12108' 8899' Sadlerochit/Zone 4 12163' 8916' Sadlerochit/Base Shublik C(Invert) 12428' 8908' Shublik C/Base Shublik B(Invert) 12500' 8884' Shublik B/Base Shublik A(Invert) 12555' 8864' Base Shublik A/Sag River(Invert) 12700' 8830' Sag River/Base Shublik A(Invert) 13850' 8825' Shublik A/Base Sag River(Invert) 14140' 8803' Sag River/Base Shublik A(Invert) 14660' 8785' Shublik A/Base Sag River(Invert) 14890' 8783' Sag River/Base Shublik A(Invert) 15355' 8780' Shublik A/Base Sag River(Invert) 15723' 8778' Formation at Total Depth: Sag River(From Base) 15723' 8778' 31.List of Attachment: Summary of Daily Drilling Reports,Well Schematic Diagram,Surveys 32. I hereby certify that the foregoing is true and correct to the best of my knowledge. Contact: Rahul Madara ,564-4147 Email: Rahul.Madarapu@bp.com Printed Name: Joe Title: Drilling Technologist '-stu Siqnatu -: Phone 564-4091 Date: `21/13 INSTRUCTIONS General: This form is designed for submitting a complete and correct well completion report and log on all types of lands and leases in Alaska. Submit a well schematic diagram with each 10-407 well completion report and 10-404 well sundry report when the downhole well design is changed. Item 1 a: Classification of Service Wells: Gas Injection,Water Injection,Water-Alternating-Gas Injection,Salt Water Disposal,Water Supply for Injection, Observation,or Other. Multiple completion is defined as a well producing from more than one pool with production from each pool completely segregated. Each segregated pool is a completion. Item 4b: TPI(Top of Producing Interval). Item 8: The Kelly Bushing and Ground Level elevation in feet above mean sea level. Use same as reference for depth measurements given in other spaces on this form and in any attachments. Item 13: The API number reported to AOGCC must be 14 digits(ex: 50-029-20123-00-00). Item 20: Report true vertical thickness of permafrost in Box 20. Provide MD and ND for the top and base of permafrost in Box 28. Item 23: Attached supplemental records for this well should show the details of any multiple stage cementing and the location of the cementing tool. Item 24: If this well is completed for separate production from more than one interval(multiple completion),so state in item 1,and in item 23 show the producing intervals for only the interval reported in item 26. (Submit a separate form for each additional interval to be separately produced, showing the data pertinent to such interval). Item 27: Method of Operation: Flowing,Gas Lift,Rod Pump, Hydraulic Pump,Submersible,Water Injection,Gas Injection,Shut-In,or Other(explain). Item 28: Provide a listing of intervals cored and the corresponding formations,and a brief description in this box. Submit detailed description and analytical laboratory information required by 20 AAC 25.071. Item 30: Provide a listing of intervals tested and the corresponding formation,and a brief summary in this box. Submit detailed test and analytical laboratory information required by 20 AAC 25.071. Form 10-407 Revised 10/2012 Submit Original Only TREE= 4-1/16"CAN WELLHEAD= aw PJC DRAFT Y-1 9 A SAFE. . NOTES:WELL ANGLE>70°@ 12126'-14MAL ACTUATOR= BAKER C WELLBORE NOT SHOWN BELOW WHPSTOCK @ 3030' _._ INITIAL KB.ELE 80.391 _5 // Ll I 2121' 4-112"HES X NP,D=3.813" BF.E�EV= 51.05 -� _KOP- 3030' 20"CONDUCTOR, ? I�x Angle= 98°4-1-26-4' 94#,H-40 Datum MD= 12083' ID=19.124' 2814' -14-112"SLB-SFW-11 w/CONTROL LIQ,0=3.880" Datum TVD= 8800'SS 13-3/8"CSG,68#,L-80 BUTT,D=12.415" - 2704' 2889' H9-5/8"X 7"BKR ZXPN LTP,D=6.18' 290V H9-5/8"X 7"BKR FLEX-LOCK HGR,13=6.276" 9-5/8"CSG,47#,L-80 BUTT,I)=8.681" - -3030' 9-5/8"VVHPSTOCK(11/28/12) -1 3030' 9-5/8 MILLOUT WINDOW(Y-19A) 3030'-3047' GAS LIT MANDRELS Minimum ID = 2.600" @ 16096' ST MD IVO DEV TYPE VLV LATCH FORT DATE .FRAC PORT SLIDING SLEEVE 5 3521 3494`25 KBG2 DCK2 BBC - 12/26/12 I 4 7459 5497 r 60 KBG2 DMY BK 0 12/26/12 3 9194 6806 r 27 KBG2 DMY BK 0 12/26/12 2 10514 7793 r 46 KBG2 DMY BK 0 12/26/12 • 1 11630 8584 r 44 KBG2 DMY BK 0 12/26/12 11664' H4-1/2"HES X NP,D=3.813" q ' C /� /�� 11694' -)7 X 4-112"HES TNT PKR,D=3.856" iii.. 11728' H4-1/2"HES X NPI ,ID=3.813" TOP OF4-1/2"LNR H 11811' `i i eq' ' 11799' -14-1/2"HES X ',D=3.813" 4-1/2"TBG, 12.6#,13CR-85 VAM TOP, H 11819' L A tom11811' JH7"X 5"BKR HRD-EZXFN LTP,ID=4.250" .0152 bpf,D=3.958" illi 11819' H4-1/2"WLEG,ID=4.00" T LW,26#,L-80 VAM TOP HC, H 11960' HEAD ELMD TT NOT LOGGED .0383 bpf,D=6.276" ,\ ► 11832' -{7"X4-1/2"BKR FLEX LOCK LNR HGR 0=3.910" • _� 12588' H4-1/2"HMV&EXTERNAL CSG PKR,D=3.90" '' ''° FRAC PORT SLIDING SLEEVE I-ES SWELL PACKERS NO SIZE TOP DEPTH MND I I NO SEAT SZ. DEPTH 0/C DATE P 10 4-1/2" 12820 3.958" 01-' F 3.375" 13005 C 12/23/12 9 4-1/2" 13180 3.958" 11 E 3.250" 13306 C 12/23/12 8 4-1/2" 13395 3958" =• ..m. D 3.125" 13519 C 12/23/12 7 4-1/2" 13694 3.958" 1 I C 3.000" 14390 C 12/23/12 =° =. B 2.875" 15096 C 12/23/12 6 4-1/2" 14224 3.958" 5 4-1/2" 14522 3.958" 1E:4 'A 3.958" 15628 C 12/23/12 4 4-1/2" 14930 3.958" i i 'A----DUAL EXTERNAL FRAC PORT 3 4-1/2" 15218 3.958" _. _. O=OPEN C=CLOSED 2 4-1/2" 15503 3.958" T.. ._. 1 3-1/2" 15765 2.992" I 15187' H4-1/2"BKR SHIFTING TOOL ..7..-.. ic.1 V ERFICATION SUB, D=3.880" 4-1/2"LNR,12.6#,L-80 HYD 521, IEMill .0152 bpf,D=3.958" 15678' H 3-112"TOE ORCULATNG SUB,ID=2.992" PBTD -- 15835' 15732' -14-1/2"X 3-1/2"XO,D=2.992' 3-1/2"SLID LNR,9,2#,L-80 TCI, - 15848' \,I I .0158 bpf,D=2.992" L DATE REV BY COMMENTS DATE REV BY COMVENTS PRUDHOE BAY LST 09114/88` N18E IMTIAL COMPLET1ON WELL: Y-19A 12/28/12 D25 SIDETRACK(Y-19A) PERMT No:"2120200 01/07/13 PJC DRLG DRAFT CORRECTIONS API No: 50-029-21857-01 01/08/13 SLD PJC FRAC PORT CORRECTION Sec.33,T11N,R13E, 1463'FTS&456'FEL BP Exploration(Alaska) BP AMERICA LOT / FIT Summary Well Name: Y-19A Surface Leak Off Test Test Test Depth Test Depth AMW Pressure Pressure EMW Date Type (TMD-Ft) (TVD-Ft) (ppg) (psi) (BHP) (psi) (ppg) 12/16/12 FIT 11,960.00 8,821.00 8.60 367.00 4,307.80 9.40 Page 1 of 1 North America-ALASKA- BP Page 1 of 30 ..a Operation Summary Report Common Well Name:Y-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/4/2012 End Date: 12/28/2012 X3-011 M2:DRILL(10,490,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:9/4/1988 12:00:00AM Rig Release:8/7/2012 Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 8/4/2012 15:00 - 00:00 9.00 MOB P PRE PREPERATION FOR MOBOLIZATON FROM WEST DOCK TO Y-PAD -LOWER CATTLE CHUTE,LOWER DERRICK -SEPERATE THE MODULES IN PREP FOR RIG MOVE. 8/5/2012 00:00 - 09:00 9.00 MOB P PRE PREPERATION FOR MOBOLIZATON FROM WEST DOCK TO Y-PAD -FINAL MODIFICATION TO DERRICK BOARD 09:00 - 20:00 11.00 MOB P PRE MOBILIZE RIG CAMP.PIT, PUMP AND POWER MODULES FROM WEST DOCK TO Y-PAD 20:00 - 00:00 4.00 MOB P PRE MOBILIZE POWER,PUMP AND PIT MODULES FROM WEST DOCK TO Y-PAD 8/6/2012 00:00 - 06:00 6.00 MOB P PRE MOBILIZE POWER,-PUMP AND PIT MODULES FROM WEST DOCK TO Y-PAD 06:00 - 00:00 18.00 MOB P PRE SPOT ALL RIG MODULES OVER WELL#19 RIGGING UP FOR DE-COMPLETE AND SIDETRACK OPERATIONS SOFT GRAVEL PAD CAUSING SOME ISSUES SPOTTING THE RIG 8/7/2012 00:00 - 06:00 6.00 MOB P PRE SPOTTING RIG MODULES OVER WELL#19 RAISE DERRICK, RIGGING UP FOR DE-COMPLETE AND SIDETRACK - . OPERATIONS 06:00 - 12:00 6.00 MOB P PRE CONT SPOTTING POWER AND PIT MODULES CONT RIGGING UP FOR WELL WORK OPERATIONS DECISION FROM TOWN: -TO MOVE THE RIG FROM Y-PAD TO Z-PAD DUE TO PIPELINE VSM DAMAGE. REPAIR WORK TO BE DONE ON LINES DURING THE NEXT TWO WEEKS. RIG CHARGES STOP AT 12:00 FOR Y-19A OPERATIONS 11/21/2012 12:00 - 00:00 12.00 MOB P PRE PREP RIG FOR RIG DOWN. -INSTALL FLANGES WITH NEEDLE VALVES AND GUAGES ON IA AND OA -RIG DOWN CIRCULATING HOSES IN CELLAR. -STAGE RIG MODULES IN MOVE ORDER FOR MOVE TO Y PAD. 11/22/2012 00:00 - 08:00 8.00 RIGD P PRE RIGGING DOWN,PREP FOR RIG MOVE FROM Z-10A -STAGED POWER, PUMP AND PIT MODULES, SUB BASE, PIPE SHED AND CASING SHED IN MOVE ORDER ON Z PAD. -LOADER STACKED RIG MATS. 08:00 - 09:30 1.50 MOB N WAIT PRE RIG MOVE TRUCKS SCHEDULED TO ARRIVE AT MOBIL PAD TO MOVE RIG CAMP. TRUCKS DELAYED UNTIL 09:30-HRS. DUE TO WAITING FOR KUPARUK BRIDGES TO BE RIG MATTED. 09:30 - 10:00 0.50 MOB P PRE PRE-RIG CAMP MOVE SAFETY MEETING. 10:00 - 11:00 1.00 MOB P PRE STAGE CAMP MODULES AND HOOK UP TRUCKS. 11:00 - 12:00 1.00 MOB N WAIT PRE WAITING ON SECURITY ESCORT TO ARRIVE. Printed 1/7/2013 1:26:41PM • North America -ALASKA- BP Page 2 of 30 Operation Summary Report Common Well Name:Y-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/4/2012 End Date: 12/28/2012 X3-011M2:DRILL(10,490,000.00) Project: Prudhoe Bay Site: PB Y Pad Rig Name/No.: DOYON 25 Spud Date/Time:9/4/1988 12:00:00AM Rig Release: 8/7/2012 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 - 18:00 6.00 MOB P PRE COMMENCE MOVING RIG CAMP AND SUPPORT EQUIPMENT FROM MOBIL PAD TO Y PAD. -NOTIFIED AOGCC VIA PREFERRED WEB SITE OF IMPENDING INITIAL BOPE TEST ON 11-24-2012 AT20:00-HRS. RIG CAMP ON LOCATION AT 16:00 18:00 - 00:00 6.00 MOB P PRE MOBILIZE RIG MODULES FROM Z-PAD TO Y-PAD -MOTORS, PITS,PUMPS LEFT Z-PAD 19:30 HRS,ARRIVED ON LOCATION 23:30 -MOBILIZED SUB AND PIPE SHEDS FROM Z-PAD @ 24:00 HRS 11/23/2012 00:00 - 06:00 6.00 MOB P PRE MOBILIZE THE REST OF THE RIG MODULES FROM Z-PAD -MIRU 06:00 - 10:00 4.00 MOB P PRE SUB BASE,PIPE SHED AND CASING SHED ARRIVED ON Y PAD AT 10:00-HRS. 10:00 - 00:00 14.00 MOB P PRE SPOT SUB BASE OVER WELL. SPOT PIPE SHED,CASING SHED,PITS, PUMP AND POWER MODULE. -CONFIRMED NOTIFICATION TO AOGCC OF IMPENDING BOPE TEST. BOB NOBLE, AOGCC INSPECTOR WAIVED WITNESS OF BOPE TEST AT 16:30-HRS. -LOCKED OUT FOLLOWING WELLS FOR ANTI-COLLISION PURPOSES:Y-02,Y-03,Y-04, Y-12,Y-26 AND Y-33. LOCKED OUT Y-061 INJECTOR TO ELIMINATE POSSIBLE RESERVOIR PRESSURE INFLUENCE ON Y-19 PRODUCTION HOLE SECTION. -SHIM&CASING SHED MODULE, RAISE DERRICK. 11/24/2012 00:00 - 06:00 6.00 RIGU P PRE SKID RIG FLOOR,RAISE THE DERRICK -WALK PITS INTO PLACE -RIGGING UP FOR DE-COMPLETE AND SIDETRACK OPERATIONS 06:00 - 12:00 6.00 RIGU P PRE PLUG IN MODULES -SWAP FROM COLD START POWER TO RIG MOTORS -CONNECT ALL SERVICE LINES AND PIPING -PREP DERRICK FOR SCOPING -RU CELLAR 12:00 - 18:00 6.00 RIGU P PRE TAKE ON 8.5 PPG SEA WATER TO PITS -RIG FLOOR PREP -SCOPE DERRICK, UNPIN TOP DRIVE, REMOVE BRIDAL LINES, INSTALL KELLY HOSE TO TOP DRIVE RIG ACCEPT AT 12:00 HRS ON 11/24/12 18:00 - 19:00 1.00 RIGU P PRE PRE SPUD MEETING WITH MARMON CREW -SCOPE OF WORK,CRITICAL ISSUES, BARRIERS AND CURRENT OPERATIONS DISCUSSED. 19:00 - 22:00 3.00 RIGU P PRE INSTALL 1502 FLANGES ON OA AND IA,RU LINES FOR FREEZE PROTECT CIRC OUT. Printed 1/7/2013 1:26:41PM North America -ALASKA- BP1111/ Page 3 of 30 Operation Summary Report Common Well Name:Y-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/4/2012 End Date: 12/28/2012 X3-011 M2:DRILL(10,490,000 00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:9/4/1988 12:00:OOAM Rig Release:8/7/2012 Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code ' NPT NPT Depth Phase Description of Operations (hr) (ft) 22:00 - 22:30 0.50 RIGU P PRE HOLD RIG EVACUATION DRILL W/AAR -ABANDON RIG DRILL CALLED,ALL CREW AND RIG PERSONEL EVACUATED TO MUSTER POINT AT SIGN IN TRAILER.HEAD COUNT WAS TAKEN -ALL PERSONEL ACCOUNTED FOR,TURNING OFF THE TRUCKS AS A PART OF THE EVACUATION WAS DISCUSSED. 22:30 - 00:00 1.50 RIGU P PRE RU AND TEST SURFACE LINES -TEST LINES TO 250 PSI LOW AND 3500 HIGH FOR 5 CHARTED MIN. 11/25/2012 00:00 - 01:00 1.00 RIGU P PRE PRESSURE TESTING SURFACE HARD LINES -250 PSI LOW,3500 PSI HIGH FOR 5- CHARTED MIN 01:00 - 02:00 1.00 RIGU P PRE PRE SPUD MEETING WITH FLEAGLE CREW -SCOPE OF WORK,CRITICAL ISSUES, BARRIERS AND CURRENT OPERATIONS DISCUSSED. 02:00 - 04:30 2.50 WHSUR P DECOMP PRESSURE TEST OA -250 PSI LOW FOR 5 MIN/2000 PSI HIGH FOR 30 MIN-CHARTED -GOOD TEST _PRESSURE TEST IA --250 PSI LOW FOR 5 MIN/3500 PSI HIGH FOR 30 MIN-CHARTED -GOOD TEST 04:30 - 05:30 1.00 DHB P DECOMP P/U LUBRICATOR AND TEST -250 PSI LOW FOR 5 MIN/3500 PSI HIGH FOR 5 MIN -GOOD TEST PULL BPV,R/D LUBRICATOR 05:30 - 08:00 2.50 KILLW P DECOMP REVERSE CIRCULATE DIESEL FREEZE PROTECT OUT.TO OPEN TOP TANK AT 315-GPM @ 1600-PSI, PUMPED 350-BBLS MONITORED WELL FOR 10 MINUTES. WELL IS STATIC -ESTIMATED 170 BBLS OF DIESEL RECOVERED 08:00 - 09:30 1.50 DHB P DECOMP RU AND TEST LUBRICATOR -250 PSI LOW FOR 5 MIN/3500 PSI HIGH FOR 5 MIN-CHARTED -GOOD TEST DRILL SITE MAINTENENCE INSTALL TWC -RD LUBRICATOR 09:30 - 12:00 2.50 WHSUR P DECOMP PRESSURE TEST TWC FROM ABOVE -250 PSI LOW FOR 5 MIN/4000 PSI HIGH FOR 5 MIN, CHARTED PRESSURE TEST F/BELOW,250 PSI LOW, 3500 PSI HIGH FOR 5 CHARTED MIN SUCK OUT TREE 12:00 - 13:00 1.00 WHSUR P DECOMP ND DRY HOLE TREE&ADAPTER FLANGE 13:00 - 16:00 3.00 BOPSUR P DECOMP N/U BOPE -P/U 14 RISER,WITH 3 SPACER SPOOL AND 1 DSA -N/U FLOW LINE,FLOW BOX,CHOKE&KILL LINES -INSTALL LOW PRESSURE RISER R/U BOP TEST EQUIPMENT 16:00 - 19:00 3.00 BOPSUR N HMAN DECOMP RECONFIGURE HIGH PRESSURE RISER Printed 1/7/2013 1:26:41 PM North America -ALASKA- BP • f Page 4 of 30 Operation Summary Report Common Well Name:Y-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) I Start Date: 8/4/2012 End Date: 12/28/2012 X3-011 M2:DRILL(10,490,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.: DOYON 25 Spud Date/Time:9/4/1988 12:00:00AM Rig Release: 8/7/2012 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 19:00 - 22:00 3.00 BOPSUR P DECOMP CONT NU BOPE 22:00 - 23:00 1.00 BOPSUR P DECOMP -CHANGE OUT SAVER SUB ON TOP DRIVE 23:00 - 00:00 1.00 BOPSUR P DECOMP RU BOPE TEST EQUIPMENT _ -SEAL FLOW BOX 11/26/2012 00:00 - 06:00 6.00 BOPSUR P DECOMP TEST BOPE.TESTED ANNULAR AND RAMS TO 250 PSI LOW/ 4000 PSI HIGH FOR 5 MIN EACH.TEST 3.5"& 5"DP.ALL TESTS CHARTED. ALL PVT AND GAS ALARMS CALIBRATED -SEE BOP TEST ATTACHMENT. TEST WITNESSED BY WSL AND DDI TOOLPUSHER.PERFORMED ACCUMULATOR TEST:SYSTEM PRESSURE 3075 PSI,PRESSURE AFTER CLOSING ALL RAMS AND ANNULAR PREVENTER 1800 PSI. RECOVERED 1ST 200 PSI-16 SECONDS.6 NITROGEN BOTTLES,AVERAGE PRESSURE= 2133-PSI. CLOSING TIMES -ANNULAR=23 SECONDS -UPPER VBR=22 SECONDS -BLIND/SHEARS=23 SECONDS -LOWER VBR=22 SECONDS -CHOKE HCR=2 SECONDS -KILL HCR=2 SECONDS AOGCC BOB NOBLE WAVED WITNESS TO BOPE TEST. 06:00 - 07:00 1.00 BOPSUR P DECOMP R/D BOPE TEST EQUIPMENT -LAY DOWN 5"TEST JOINT 07:00 - 08:00 1.00 BOPSUR P DECOMP MAKE UP DUTCH RISER SYSTEM. M/U LUBRICATOR&TEST TO 250 PSI LOW/ 3500 PSI HIGH FOR 5 MIN EACH PULL TWO, RID LUBRICATOR&DUTCH RISER SYSTEM. 08:00 - 09:00 1.00 PULL P DECOMP RU POWER TONGS AND OTHER TUBING HANDLING EQUIPMENT -CLEAN&CLEAR RIG FLOOR 09:00 - 11:00 2.00 DHB P DECOMP M/U LUBRICATOR&TEST TO 250 PSI LOW/ 3500 PSI HIGH FOR 5 MIN EACH. PULL TWC. R/D LUBRICATOR&DUTCH RISER SYSTEM 11:00 - 13:00 2.00 CLEAN P DECOMP M/U CROSSOVER AND SCREW INTO TUBING HANGER -UNSEAT HANGER WITH 69K -MONITOR WELL FOR 10 MIN -L/D HANGER 13:00 - 14:30 1.50 CLEAN P DECOMP CLOSE THE ANNULAR AND CIRCULATE THROUGH THE CHOKE TO THE GAS BUSTER. -CIRCULATE BOTTOMS UP, CIRCULATE 25 BBLS OF SEAWATER AT 3 BPM.90 PSI. FOLLOWED BY 50 BBLS OF DEEP CLEAN AT 4 BPM,200 PSI. FOLLOWED BY SEAWATER AT 5 BPM 700 PSI. -PUMPING 469 BBLS TOTAL Printed 1/7/2013 1.26:41PM North America -ALASKA- BP •e 5 .13� Operation Summary Report r` ti Common Well Name:Y-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:8/4/2012 End Date: 12/28/2012 'X3-011 M2:DRILL(10,490,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.: DOYON 25 Spud Date/Time:9/4/1988 12.00:OOAM Rig Release: 8/7/2012 Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 14:30 - 21:00 6.50 CLEAN P DECOMP POOH AND LAY DOWN 3-1/2"9.3.#EUE 8RD NB TUBING FROM 3194'MD TO SURFACE REMOVING DUAL ENCAPSULATED CONTROL LINE& CONTROL LINE PROTECTORS. RECOVER TOTAL OF 32 CONTROL LINE PROTECTORS AND 4 STAINLESS STEEL BANDS. -TOTAL OF 99 FULL JOINTS PULLED AND LAYED DOWN -CUT JOINT=4.05'ON JOINT#100 21:00 - 22:30 1.50 CLEAN P DECOMP CLEAN&CLEAR RIG FLOOR OF TUBING EQUIPMENT -PU SCRAPER BHA TO THE FLOOR -INSTALL WEAR BUSHING-12.25"ID 22:30 - 23:00 0.50 CLEAN P DECOMP PJSM _-BAKER REP,'DDI CREW AND BP WSL 23:00 - 00:00 1.00 CLEAN P DECOMP PU-&MU CLEAN OUT BHA: TOTAL 766.7' -8-1/2"MT BIT -(2)7"BOOT BASKETS -(1)9-5/8"CASING SCRAPER -BIT SUB 8-1/2"UPPER WATER MELLON MILL -6-1/2"BUMPER SUB -(9)6-3/4"DRILL COLLARS -(15)JNTS OF 5"HWDP -5"DP 11/27/2012 00:00 - 01:00 1.00 CLEAN P DECOMP CONTINUE M/U CLEANOUT ASSEMBLY TO 300'MD 01:00 - 02:00 1.00 CLEAN P DECOMP RIH WITH CLEANOUT BHA ON 5"DRILLPIPE SINGLES FROM 300'TO 766'MD 02:00 - 04:00 2.00 CLEAN P DECOMP RIH WITH CLEANOUT BHA ON 5"DP DOUBLES FROM 766'TO 3208'MD -RECIPROCATE FROM 2850'TO 3100' ACROSS THE EZSV SET DEPTH -RIH AND TAG 3-1/2"TUBING STUB AT 3,208' DP MEASUREMENT 04:00 - 05:00 1.00 CLEAN P DECOMP CIRCULATE 3 BOTTOMS UP -680 GPM,1200 PSI,8.5 PPG IN/OUT MONITOR WELL FOR 10 MIN-STATIC 05:00 - 07:00 2.00 CLEAN P DECOMP POH WITH 9-5/8"CLEANOUT BHA FROM 3208' TO 300' MONITOR WELL FOR 10 MIN-STATIC _ 07:00 - 08:30 1.50 CLEAN P DECOMP L/D CLEANOUT BHA -RECOVERED 3/4 CUP OF SCALE IN JUNK BASKET 08:30 - 09:00 0.50 CLEAN P DECOMP CLEAN AND CLEAR RIG FLOOR 09:00 - 13:00 4.00 DHB P DECOMP R/U SLB E-LINE -RIH WITH 9-5/8"EZSV AND SET AT 3,043' WLM -POOH WITH E-LINE 13:00 - 14:30 1.50 DHB P DECOMP R/D SLB E-LINE 14:30 - 15:30 1.00 CLEAN P DECOMP GREASE CROWN AND TOPDRIVE 15:30 - 16:00 0.50 CLEAN P DECOMP CHANGE OUT TO 5"SLIP INSERTS Printed 1/7/2013 1:26:41 PM North America -ALASKA- BP • Page 6 of 30 Operation Summary Report -- Common Well Name:Y-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/4/2012 End Date: 12/28/2012 X3-011M2:DRILL(10,490,000.00) Project:Prudhoe Bay Site: PB Y Pad Rig Name/No.: DOYON 25 Spud Date/Time:9/4/1988 12:00:OOAM Rig Release: 8/7/2012 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 16:00 - 17:00 1.00 DHB P DECOMP R/U AND PRESSURE TEST 9-5/8"EZSV TO 250 LOW/3500 HIGH FOR 5/30 MIN -GOOD TEST -WTL APPROVED TO PROCEED(MADSEN FILLING IN FOR SCHULTZ) _ 17:00 - 19:00 2.00 CLEAN P DECOMP RIH WITH 5"DRILLPIPE DOUBLES TO 2085' MD 19:00 - 20:00 1.00 CLEAN P DECOMP CONTINUE RIH WITH 5"DRILLPIPE SINGLES FROM 2085'TO 3001'MD. 20:00 - 22:30 2.50 CLEAN P DECOMP POOH RACKING BACK STANDS FROM 3001' TO SURFACE 22:30 - 00:00 1.50 CLEAN P DECOMP RIH WITH 5"DRILLPIPE SINGES TO 1422'MD 11/28/2012 00:00 - 02:00 2.00 CLEAN P DECOMP CONTINUE RIH WITH 5"DRILLPIPE SINGES FROM 1422'TO 3000'MD 02:00 - 03:30 1.50 CLEAN P DECOMP POOH RACKING BACK 5"DRILLPIPE FROM 3000'TO_SURFACE 03:30 - 04:00 0.50 STWHIP P WEXIT R/U FOR P/U WHIPSTOCK AND MILLING ASSEMBLY 04:00 - 05:30 1.50 STWHIP P Wb(IT M/U WHIPSTOCK MILLS,FLOAT SUB,MWD, AND UBHO 05:30 - 06:30 1.00 STWHIP P WEXIT. M/U WHIPSTOCK TO MILLS AND CHANGE • .OUT SLIP INSERTS 06:30 - 08:00 1.50---- STWHIP P WEXIT .-RIH WITH 6-3/4"DRILL COLLARS AND 5" HWDP TO 854'MD 08:00 - 08:30 0.50 STWHIP P WEXIT SHALLOW HOLE TEST MWD -500 GPM,900 PSI 08:30 - 10:00 1.50 STWHIP P WEXIT RIH W/WHIPSTOCK AND MILLING ASSEMBLY TO 2844'MD '10:00 - 10:30 0.50 STWHIP P WEXIT OBTAIN PARAMETERS AND ATTMEPT TO ORIENT WHIPSTOCK WITH MWD (UNSUCESSFUL) -CONTINUE RIH TO 2935'MD 10:30 - 12:30 2.00 STWHIP P WEXIT RIH WITH GYRO ON E-LINE.OBTAIN TOOLFACE AND ORIENT WHIPSTOCK -AZIMUTHAL TOOL FACE 48 DEGREES WEST (OF TRUE NORTH) 12:30 - 13:00 0.50 STWHIP P WEXIT RIH FROM 2935'TO 3034'MD -ATTEMPT TOOLFACE SURVEY VIA MWD _(UNSUCESSFUL) 13:00 - 13:30 0.50 STWHIP P WEXIT TAG EZSV AT 3051'MD,SET WHIPSTOCK -SET DOWN 20K TO SET ANCHOR -P/U 15K OVERPULL TO VERIFY ANCHOR SET -S/O 47K TO SHEAR MILLS OFF OF WHIPSTOCK 13:30 - 14:00 0.50 STWHIP P WEXIT POOH WITH MILLING ASSEMBLY TO 2844'MD -M/U HES STORM PACKER AND SET AT 100' 14:00 - 14:30 0.50 STWHIP P WEXIT PRESSURE TEST STORM PACKER TO 250 LOW/2000 HIGH FOR 5 MIN EACH -GOOD TEST 14:30 - 15:00 0.50 STWHIP P WEXIT PULL WEAR RING 15:00 - 17:00 2.00 STWHIP P WEXIT M/U PACKOFF RETRIEVAL TOOL AND ATTEMPT TO PULL 9-5/8"PACKOFF -PULL PACKOFF WITH 50K LBS,WORKING UP IN 5K LB INCREMENTS -PACKOFF PARTED,LEAVING PRIMARY SEAL AND JUNK RING IN WELLHEAD Printed 1/7/2013 1:26:41PM North America -ALASKA- BP Operation Summary Report Common Well Name:Y-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/4/2012 End Date: 12/28/2012 X3-011M2 DRILL(10,490,000 00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No. DOYON 25 Spud Date/Time:9/4/1988 12:00:00AM Rig Release:8/7/2012 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 17:00 - 19:00 2.00 STWHIP P WEXIT N/D BOPE -REMOVE CHOKE AND KILL LINE, FLOW LINE, LOW PRESSURE RISER,JOE'S BOX, HIGH PRESSURE RISER,AND TUBING SPOOL 19:00 - 21:00 2.00 STWHIP P WEXIT INSTALL NEW TUBING SPOOL 21:00 - 00:00 3.00 STWHIP P WEXIT INSTALL HIGH PRESSURE RISER,BOPE, CHOKE AND KILL LINE,JOE'S BOX,AND FLOW LINE 11/29/2012 00:00 - 00:30 0.50 STWHIP P WEXIT CONTINUE NU BOPE STACK TO HIGH PRESSURE RISER 00:30 - 01:30 1.00 STWHIP P WEXIT INSTALL LOW PRESSURE RISER,SEAL JOE'S BOX, INSTALL PS-21 SLIPS 01:30 - 05:30 4.00 STWHIP P WEXIT M/U PACKOFF RUNNING TOOL AND INSTALL 9-5/Er PACKOFF. -TEST PACKOFF TO 250 LOW/3500 HIGH FOR 15/30 MIN 05:30 - 06:30 1.00 STWHIP , P WEXIT INSTALL TEST PLUG AND TEST BOPE BREAKS TO 250 LOW/4000 HIGH FOR 5 MIN EACH 06:30 - 08:00 1.50 STWHIP P WEXIT M/U STORM PACKER RETRIEVAL TOOL -RIH&RETRIEVE STROM PACKER AT 100' -L/D RUNNING TOOL AND STORM PACKER -RIH W/MILLING ASSEMBLY FROM 2,823'TO 3,010' 08:00 - 09:00 1.00 STWHIP P WEXIT DISPLACE WELL TO 9.1 PPG LSND -500 GPM,1000 PSI -P/U 133K,S/0 143K,ROT 136K -WASH DOWN FROM 3,010'TO 3,030' -TAG TOP OF SLIDE AT 3,030' SPR'S @ 3,010"MD,MW=9.1 PPG,TIME= 08:30 HRS \ir11)1 #1 MP-20/30 SPM=70/110 PSI #2 MP-20/30 SPM=50/110 PSI \d1(\ 09:00 - 16:00 7.00 STWHIP P WEXIT MILL 8-1/2"WINDOW IN 9-5/8"CASING FROM 3,030'MD TO 3,047'MD -500 GPM,830 PSI -90 RPM,2-7K TQ -2-6K WOB -MW 9.1 IN/9.1 OUT -P/U= 133K, S/0= 142K TOW=3,030'MD, MOW=3,038'MD, BOW= 3,047'MD 305 LBS OF METAL SHAVINGS RECOVERED 16:00 - 17:30 1.50 STWHIP P WEXIT DRILL 20'OF NEW FORMATION TO 3,067'MD -500 GPM,830 PSI -90 RPM,3K TQ -2-6K WOB -MW 9.1 IN/9.1 OUT 17:30 - 18:00 0.50 STWHIP P WEXIT WORK MILLS THROUGH WINDOW FROM 3,028'TO 3,067' -REDRESS WINDOW W/465 GPM,730 PSI/ 90 RPM,1-3K TQ -WORK MILLS CLEAN THROUGH WINDOW 18:00 - 18:30 0.50 STWHIP P WEXIT PUMP 40 BBL SUPERSWEEP -600 GPM,1,100 PSI -MINIMAL CUTTINGS RETURNED FROM SWEEP Printed 1/7/2013 1 26 41PM • North America -ALASKA- BP Page 8 of 30 Operation Summary Report Common Well Name:Y-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:8/4/2012 End Date: 12/28/2012 X3-011 M2:DRILL(10,490,000.00) Project: Prudhoe Bay I Site: PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:9/4/1988 12:00:00AM Rig Release:8/7/2012 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations / (hr) (ft) 1 18:30 - 20:30 2.00 STWHIP P WEXIT POOH TO 2,939'MD. R/U TEST EQUIPMENT AND PERFORM FIT. -TVD=3,030'MD -12.32 PPG EMW FIT ACHIEVED(507 PSI SURFACE PRESSURE) -FIT APPROVED BY WTL -R/D TEST EQUIPMENT MONITOR WELL FOR 10 MIN-STATIC -MW 9.1 PPG IN AND OUT 20:30 - 22:00 1.50 STWHIP P WEXIT POOH FROM 2,939'TO 928' MONITOR WELL FOR 10 MIN-STATIC 22:00 - 00:00 2.00 STWHIP P WEXIT L/D WINDOW MILLING ASSEMBLY FROM 928' TO 88' 11/30/2012 00:00 - 01:00 1.00 STWHIP P WEXIT CONTINUE L/D 8 1/2"WINDOW MILLING ASSEMBLY STAND BACK HWDP -L/D SPIRAL DRILL COLLARS&MILLING ASSEMBLY -STARTER MILL 3/8"OUT OF GAUGE -LOWER STRING MILL 1/4"OUT OF GUAGE -BOTH UPPER STRING MILLS IN GAUGE 01:00 - 02:30 1.50 STWHIP P WEXIT _P/U STACK WASHER AND JET STACK -PERFORM WEEKLY BOPE FUNCTION TEST 02:30 - 06:00 3.50 STWHIP P WEXIT M/U 8-1/2"INTERMEDIATE DRILLING BHA#3 TO 833' -SHALLOW TEST MWD,500 GPM,990 PSI (GOOD TEST) 06:00 - 09:00 3.00 STWHIP P WEXIT RIH WITH 5'DP STANDS FROM 833'TO 2,925' MD,MONITOR DISPLACEMENT ON TRIP TANK 09:00 - 10:00 1.00 STWHIP P WEXIT MAD PASS FROM 2925'TO 3067'MD -500 GPM,1100 PSI -P/U 130K, S/O 137K, ROT 133K SPR'S AT 3029'MD(3028'TVD),TIME 09:30, MW 9.1 PPG #1 MP-20/30 SPM=160/200 PSI #2 MP-20/30 SPM=150/200 PSI 10:00 - 12:00 2.00 DRILL P INTI DRILL 8-1/2"INTERMEDIATE FROM 3067'TO 3206'MD(3202'TVD) -500 GPM,1280 PSI ON/1160 PSI OFF -MW 9.1 IN/9.1 OUT -40 RPM,3-4K TQ ON/2K TQ OFF -5-6K WOB -P/U= 133K, S/O=137K, ROT=135K Printed 1/7/2013 1:26:41PM North America -ALASKA BP Page 9 of 30 Operation Summary Report Common Well Name:Y-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:8/4/2012 End Date: 12/28/2012 X3-011 M2:DRILL(10,490,000.00) Project: Prudhoe Bay Site: PB Y Pad Rig Name/No.: DOYON 25 Spud Date/Time:9/4/1988 12:00:00AM Rig Release:8/7/2012 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 - 00:00 12.00 DRILL P INTI DRILL 8-1/2"INTERMEDIATE FROM 3206'TO 4248'MD(4050'TVD) -550 GPM,1575 PSI ON/1385 PSI OFF -MW 9.2 IN/9.2 OUT, ECD 10.27 PPG -80 RPM,5-6K TQ ON/3K TQ OFF -6-7K WOB -AST=1.38 HRS,ART= 1.89,ADT=3.27 HRS -P/U=150K,S/0= 150K,ROT= 149K SPR'S AT 3578'MD(3546'TVD),TIME 17:50, MW 9.2 PPG #1 MP-20/30 SPM=180/220 PSI #2 MP-20/30 SPM=180/220 PSI SPR'S AT 4059'MD(3923'TVD),TIME 22:30, MW 9.2 PPG #1 MP-20/30 SPM=160/200 PSI #2 MP-20/30 SPM= 150/200 PSI 12/1/2012 00:00 - 12:00 12.00 DRILL P INTI DRILL 8-1/2"INTERMEDIATE HOLE FROM 4248'TO 5575'MD(4655'TVD) -585 GPM,2015 PSI ON/1840 PSI OFF MW 9.2 IN/9.2 OUT -100 RPM,6-7K TQ ON/5-6K TQ OFF 12K WOB -AST=1.17 HRS,ART=3.8 HRS,ADT=4.97 HRS -P/U=168K,S/O=149K, ROT=157K SPR'S AT 4519'MD(4194'TVD),TIME 02:45, MW 9.35 PPG #1 MP-20/30 SPM=170/210 PSI #2 MP-20/30 SPM=160/210 PSI SPR'S AT 5196'MD(4480'TVD),TIME 08:30, MW 9.5 PPG #1 MP-20/30 SPM=180/220 PSI #2 MP-20/30 SPM=200/240 PSI Printed 1/7/2013 1:26:41PM x �w � North America-ALASKA- BP Operation Summary Report Common Well Name:Y-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:8/4/2012 End Date: 12/28/2012 X3-011 M2:DRILL(10,490,000.00) Project: Prudhoe Bay Site: PB Y Pad Rig Name/No.: DOYON 25 Spud Date/Time:9/4/1988 12:00:00AM Rig Release:8/7/2012 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 - 00:00 12.00 DRILL P INTI DRILL 8-1/2"INTERMEDIATE HOLE FROM 5575'TO 6809'MD(5172'TVD) -585 GPM,2100 PSI ON/1950 PSI OFF -MW 9.4 IN/9.4 OUT -ECD 10.61 PPG,CALC CLEAN HOLE ECD 10.14 PPG -100 RPM,10K TQ ON/8K TQ OFF -10K WOB -AST= 1.10 HRS,ART=3.78 HRS,ADT=4.88 HRS -P/U= 188K,S/O= 151K,ROT=165K SPR'S AT 5669'MD(4700'TVD),TIME 12:45, MW 9.4 PPG #1 MP-20/30 SPM=220/280 PSI #2 MP-20/30 SPM=220/280 PSI SPR'S AT 6145'MD(4915'TVD),TIME 16:45, MW 9.4 PPG #1 MP-20/30 SPM=240/300 PSI #2 MP-20/30 SPM=240/300 PSI SPR'S AT 6615'MD(5101'TVD),TIME 21:15, MW 9.4 PPG #1 MP-20/30 SPM=280/340 PSI #2 MP-20/30 SPM=280/340 PSI 12/2/2012 00:00 - 12:00 12.00 DRILL P INTI DRILL 8-1/2"INTERMEDIATE HOLE FROM 6809'TO 7943'MD(5764'TVD) -585 GPM,2300 PSI ON/2150 PSI OFF MW9.4IN/9.4OUT -ECD 10.47 PPG,CALC CLEAN HOLE ECD 10.16 PPG -100 RPM,12-17K TQ ON/12K TQ OFF -10-12K WOB -AST=2.81 HRS,ART=4.01 HRS,ADT=6.82 HRS -P/U=220K,S/O= 160K,ROT=182K SPR'S AT 7180'MD(5375'TVD),TIME 02:40, MW 9.4 PPG #1 MP-20/30 SPM=260/320 PSI #2 MP-20/30 SPM=260/320 PSI SPR'S AT 7659'MD(5595'TVD),TIME 21:30, MW 9.4 PPG #1 MP-20/30 SPM=280/340 PSI #2 MP-20/30 SPM=280/320 PSI Printed 1/7/2013 1:26:41 PM North America-ALAS "BP Page 11 of 30 Operation Summary Report Common Well Name:Y-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:8/4/2012 End Date: 12/28/2012 X3-011M2:DRILL(10,490,000.00) Project:Prudhoe Bay Site: PB Y Pad Rig Name/No.: DOYON 25 Spud Date/Time:9/4/1988 12:00:00AM Rig Release:8/7/2012 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 - 00:00 12.00 DRILL P INTI DRILL 8-1/2"INTERMEDIATE HOLE FROM 7943'TO 8701'MD(6368'TVD) -570 GPM,2450 PSI ON/2180 PSI OFF -MW 9.4 IN/9.4 OUT -ECD 10.46 PPG,CALC CLEAN HOLE ECD 10.17 PPG -100 RPM,16K TQ ON/14K OFF -4-12K WOB -AST=4.17 HRS,ART=2.01 HRS,ADT=6.18 HRS -P/U=245K, S/O= 173K,ROT=201 K SPR'S AT 8133'MD(5901'TVD),TIME 14:25, MW 9.4 PPG #1 MP-20/30 SPM=240/300 PSI #2 MP-20/30 SPM=240/300 PSI SPR'S AT 8606'MD(6278'TVD),TIME 21:30, MW 9.4 PPG #1 MP-20/30 SPM=300/360 PSI #2 MP-20/30 SPM=300/360 PSI 12/3/2012 00:00 - 12:00 12.00 DRILL - P INTI DRILL 8-1/2"INTERMEDIATE HOLE FROM 8701'TO 9404'MD(6989'TVD) -585 GPM,2670 PSI ON/2475 PSI OFF -MW 10.0 IN/10.0 OUT -ECD 11.20 PPG,CALC CLEAN HOLE ECD 10.78 PPG -100 RPM,16-17K TQ ON/15-16K TQ OFF -13K WOB -AST=3.90 HRS,ART=2.28 HRS,ADT=6.18 HRS -P/U=262K,S/O= 187K, ROT=215K SPR'S AT 9175'MD(6789'TVD),TIME 08:30, MW 10.0 PPG #1 MP-20/30 SPM=360/400 PSI #2 MP-20/30 SPM=310/380 PSI 12:00 - 16:00 4.00 DRILL P INTI DRILL 8-1/2"INTERMEDIATE HOLE FROM 9404'TO 9649'MD(7191'TVD) -585 GPM,2745 PSI ON/2525 PSI OFF -MW10.0IN/10.0OUT -ECD 11.28 PPG,CALC CLEAN HOLE ECD 10.78 PPG -100 RPM,16-17K TQ ON/15-16K TQ OFF -18KWOB -AST= 1.61 HRS,ART=0.48 HRS,ADT=2.09 HRS -P/U=271K,5/0=189K,ROT=208K SPR'S AT 9648'MD(7191'TVD),TIME 16:00, MW 10.0 PPG #1 MP-20/30 SPM=360/440 PSI #2 MP-20/30 SPM=360/440 PSI 16:00 - 17:30 1.50 DRILL P INTI CIRCULATE 2 BOTTOMS UP WHILE ROTATING AND RECIPROCATING -586 GPM,2460 PSI -100 RPM,13-15K TQ -PUMP 40 BBL HI-VIS SWEEP -50%INCREASE IN CUTTINGS RETURNED WITH SWEEP MONITOR WELL FOR 10 MIN-STATIC Printed 1/7/2013 1:26:41PM North America -ALASKA- BP Page 12 of 30 Operation Summary Report Common Well Name:Y-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/4/2012 End Date: 12/28/2012 X3-011M2:DRILL(10,490,000.00) Project:Prudhoe Bay Site: PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:9/4/1988 12 00.00AM Rig Release.8/7/2012 Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 17:30 - 00:00 6.50 DRILL P INTI POOH ON ELEVATORS FROM 9649'TO 1401' MD 12/4/2012 00:00 - 01:30 1.50 DRILL P INTI POOH ON ELEVATORS FROM 1401'TO 179' MD MONITOR WELL FOR 10 MIN-STATIC 01:30 - 04:30 3.00 DRILL P INT1 , L./D 8-1/2"INTERMEDIATE DRILLING BHA#3 -BIT GRADE 3-5-BT-S-X-I-CT-BHA 04:30 - 05:00 0.50 DRILL P INT1 CLEAN AND CLEAR RIG FLOOR 05:00 - 05.30 0.50 DRILL N RREP INTI CHANGE OUT DAMAGED CONTROL WIRE ON IRON ROUGHNECK 05:30 - 10:30 5.00 DRILL P INTI M/U 8-1/2"RSS INTERMEDIATE DRILLING BHA #4 AS PER SLB REP&BOT REP T/834'MD -SHALLOW HOLE TEST AT 400 GPM,515 PSI 10:30 - 13:00 2.50 DRILL P INTI F/834'T/2,978'MD -P/U WT=130K,S/O WT=137K 13:00 - 16:30 3.50 DRILL P INTI SLIP&CUT 127'DRILL LINE -CHANGE OUT GEAR LUBE OIL AND FILTER ON TOP DRIVE -INSPECT DERRICK 16:30 - 17:30 1.00 DRILL P INTI CALIBRATE TOTCO,AMPHION,MWD AND .BAKER HUGHES BLOCK HEIGHT 17:30 - 19:00 1.50 DRILL N SFAL INTI -RE-CALIBRATE BAKER HUGHES BLOCK HEIGHT 19:00 - 00:00 5.00 DRILL P INTI CONT RIH F/2,978'T/7,905'MD -MONITOR DISP VIA TRIP TANK -FILL PIPE EVERY 2,000' -OBTAIN SURVEYS AT 4471 ,4502',AND 5009' MD 12/5/2012 00:00 - 02:00 2.00 DRILL P INTI RIH FROM 7,905'TO 9,610'MD -OBTAIN SURVEYS AT 8382',8412',8856'AND 8887'MD 02:00 - 03:30 1.50 DRILL P INTI ESTABLISH CIRCULATION. ENCOUNTERED INTERMITTENT PACKING-OFF AT 9623'. WORKED PIPE AND HAD 30K OVERPULL TO COME FREE. -PUMP PRESSURE INCREASED TO 4478-PSI AND OPENED PUMP PRESSURE RELIEF VALVE -RESET PUMP PRESSURE RELIEF VALVE AND STAGED UP PUMPS -STAGE PUMPS UP TO 540 GPM,2500 PSI -BRING UP ROTARY TO 80 RPM,12-16K TQ -CIRCULATE SURFACE TO SURFACE VOLUME AND CLEANOUT FILL TO 9649' -AT BOTTOMS UP EXPERIENCED A SMALL INCREASE IN CUTTINGS TO SURFACE 03:30 - 04:00 0.50 DRILL P INTI PERFORM TOMAX ANTI-STALL TOOL TEST AT 540 GPM,2475 PSI OFF BOTTOM: -80 RPM, DH TQ 0.09K -120 RPM, DH TQ 0.09K -180 RPM, DH TQ 0.09K ON BOTTOM W/10K WOB: -80 RPM, DH TQ 2.34K -120 RPM, DH TQ 2.25K -180 RPM, DH TQ 1.98K Printed 1/7/2013 1 26:41 PM 4." . `North America -ALASKA- BP Page 13 of 30 Operation Summary Report Common Well Name:Y-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/4/2012 End Date: 12/28/2012 X3-011M2:DRILL(10,490,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:9/4/1988 12:00:00AM Rig Release: 8/7/2012 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 04:00 - 06:00 2.00 DRILL P INTI DRILL 8-1/2"INTERMEDIATE HOLE FROM 9649'MD TO 9,702'MD -540 GPM,2500 PSI ON/2490 PSI OFF -MW 10.0 IN/10.0 OUT -120 RPM,16-17K TQ ON/22K TQ OFF -15K WOB 06:00 - 06:30 0.50 DRILL N DFAL INTI TROUBLESHOOT MWD -540 GPM,2500 PSI -120 RPM,16-17K TQ 06:30 - 07:00 0.50 DRILL P INTI DRILL 8-1/2"INTERMEDIATE HOLE FROM 9,702'MD TO 9,797'MD -540 GPM,2,370 PSI -MW 10.0 IN/10.0 OUT -120 RPM,15-17K TQ ON/22K TQ OFF -15K WOB 07:00 - 11:30 4.50 DRILL N DFAL INTI ROTATE AND RECIPROCATE DRILL STRING FROM 9,702'MD TO 9,797'MD WHILE • TROUBLE SHOOTING MWD -550 GPM,2330 PSI -80 RPM,15-17K TQ -ROTATE AND RECIP PIPE FROM 9,610'MD TO 9,702'MD -REAM IN HOLE TO 9,797'MD 11:30 - 12:00 0.50 DRILt--- P INTI DRILL 8-1/2"INTERMEDIATE HOLE FROM 9,797'MD TO 9,873'MD(7,346'TVD) -560 GPM,2,440 PSI -MW 10.0 IN!10.0 OUT -120 RPM,17-19K TQ -9K WOB SPR'S AT 9,873'MD(7,346'TVD),TIME 12:40, MW 10.25 PPG #1 MP-20/30 SPM=360/440 PSI #2 MP-20/30 SPM=360/440 PSI 12:00 - 13:00 1.00 DRILL N DEAL INTI ROTATE AND RECIPROCATE DRILL STRING FROM 9,870'MD TO 9,797'MD WHILE CIRCULATING A BOTTOMS UP. -560 GPM,2440PSI -120 RPM,18K TQ -PRESSURE TEST HIGH-PRESSURE MUD LINE TO 3,500 PSI FOR 5 MINS(GOOD TEST) -MONITOR WELL FOR 10 MIN(STATIC) 13:00 - 18:00 5.00 DRILL N DFAL INTI POOH FROM 9,870'MD TO 2,978'MD -MONITOR DISPLACEMENT VIA TRIP TANK _ 18:00 - 18:30 0.50 DRILL N DFAL INTI MONITOR WELL AT SHOE -RECALIBRATE BLOCK HEIGHT AND FLOW PADDLE 18:30 - 19:30 1.00 DRILL N DFAL INTI CONT.TO POOH FROM 2978'MD T/987' -MONITOR DISPLACEMENT VIA TRIP TANK 19:30 - 20:00 0.50 DRILL N DFAL INTI PERFORM MWD SHALLOW HOLE TEST (FAILED) 20:00 - 21:00 1.00 DRILL N DFAL 1NT1 POOH F/987'T/239'MD. -MONITOR DISP VIA TRIP TANK 21:00 - 23:00 2.00 DRILL N DFAL INTI L/D BHA#4 AS PER SLB DD -NO VISIBLE DAMAGE OR BHA COMPONENT FAILURE NOTED -MONITOR DISP VIA TRIP TANK 23:00 - 23:30 0.50 DRILL N DFAL INTI CLEAN AND CLEAR RIG FLOOR Printed 1/7/2013 1:26:41 PM North America-ALASKA- BP Page 14 of 30 Operation Summary Report Common Well Name:Y-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:8/4/2012 End Date: 12/28/2012 X3-011M2 DRILL(10,490,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:9/4/1988 12:00:00AM Rig Release: 8/7/2012 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 23:30 - 00:00 0.50 DRILL P INTI SERVICE RIG WHILE DOWNLOADING STAR TRAK DATA PERFORMED WEEKLY BOP FUNCTION TEST- BLIND/SHEAR RAMS 12/6/2012 00:00 - 00:30 0.50 DRILL N DFAL INTI MOBILIZE BHA#5 -CALIBRATE TOTCO&MWD BLOCK HEIGHT CLEAN RIG FLOOR 00:30 - 02:00 1.50 DRILL N DFAL INTI P/U 8-1/2"RSS INTERMEDIATE BHA#5 AS PER SLB DD T/893' -MONITOR DISP VIA TRIP TANK 02 00 - 09.00 7.00 DRILL N DFAL INTI RIH WITH BHA#5 F/893'T/8.755'MD ON ELEVATORS -SHALLOW PULSE TEST MWD(GOOD TEST) -FILL PIPE EVERY 2,000 FT 09:00 - 09:30 0.50 DRILL P INTI SERVICE TOP DRIVE -ADD GEAR AND HYDRAULIC OIL 09:30 - 10:30 1.00 DRILL N DFAL INTI CONT.RIH F/8,755'MDT/9,750'MD 10:30 - 11:30 1.00 DRILL N DFAL INTI LOG F/9,750'T/9,873'MD. -540 GPM,2,469 PSI,80 RPM,20K TQ 11:30 - 13:00 1.50 DRILL P INTI DRILL 8-1/2"INTERMEDIATE HOLE FROM 9,873'MD TO 10,032'MD(7,454'TVD) 550 GPM,2,470 PSI ON/2,478 PSI OFF -120 RPM,TQ=24K ON/19K OFF -WOB=24K MW=10.0 PPG IN/10.0 PPG OUT -ECD=11.0 PPG(CALC ECD=10.78 PPG) -P/U=286K,S/0=186K,ROT=215K SPR'S:9,873'MD(7,344'TVD)-TIME=11:25, MW=10.0 PPG #1 MP-20/30 SPM=250/320 PSI #2 MP-20/30 SPM=250/320 PSI 13:00 - 14:30 1.50 DRILL P INTI CIRC HOLE CLEAN TOTAL OF 2 BU -540 GPM,2,300 PSI -MONITOR WELL FOR 10 MIN-STATIC 14:30 - 15:30 1.00 DRILL P INTI WIPER TRIP ON ELEVATORS T/9,700'MD,RIH T/9,990'MD -NO PROBLEMS 15:30 - 19:30 4.00 DRILL P INTI BREAK CIRC,BEGIN ADDING STRESS CAGE FLUID TO WELLBORE WHILE ROTATING& RECIP -540 GPM,2,330 PSI -120 RPM,19-21K TQ -MW IN=10.55 PPG,OUT=10.15 PPG -STATIC LOSS RATE=2 BPH 19:30 - 21:30 2.00 DRILL P INTI INCREASE MW TO 10.9 PPG WITH SPIKE FLUID WHILE ROTATING&RECIP F/9,705'T/ 9,800'MD -540 GPM,2,440 PSI -120 RPM,18-20K TQ 21:30 - 22:00 0.50 DRILL P INTI RIH F/9,800'T/10,032'MD Printed 1/7/2013 1:26:41 PM North America-ALASKA- BPIF Operation Summary Report Common Well Name:Y-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:8/4/2012 End Date: 12/28/2012~X3-011M2:DRILL(10,490,000.00) Project:Prudhoe Bay Site: PB Y Pad Rig Name/No.: DOYON 25 Spud Date/Time:9/4/1988 12.00:00AM Rig Release:8/7/2012 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 22:00 - 00:00 2.00 DRILL P INTI DRILL 8-1/2"INTERMEDIATE HOLE FROM 10,032'MD TO 10,175'MD(7,558'TVD) -535 GPM,2,500 PSI ON/2,480 PSI OFF -120 RPM,TQ=22-24K ON/22K OFF -WOB=18K -MW=10.9 PPG IN/10.9 PPG OUT -ECD=11.8 PPG(CALC ECD= 11.66 PPG) -P/U=285K,S/O=187K,ROT=221K AST=0 HRS,ART=1.04,ADT=1.04 HRS TOTAL BIT HRS=3.66,TOTAL JAR HRS=39.4 NO LOSSES SPR'S: 10032'MD(7,455'TVD)-TIME=22:00, MW=10.8 PPG #1 MP-20/30 SPM=220/300 PSI #2 MP-20/30 SPM=200/300 PSI 12/7/2012 00:00 - 12:00 12.00 DRILL P INTI DRILL 8-1/2"INTERMEDIATE HOLE F/10,175' MD T/11,123'MD(8,223'TVD) -540 GPM,2,748 PSI ON/2,725 PSI OFF -120 RPM,TQ=20-24K ON/22K OFF WOB=20K -MW=10.9 PPG IN/10.9 PPG OUT -ECD=12.01 PPG(CALC ECD= 11.81 PPG) -P/U=323K, S/0=190K,ROT=235K AST=0 HRS,ART=7.04,ADT=7.04 HRS TOTAL BIT HRS=8.91,TOTAL JAR HRS=46.4 SPR'S: 11,068'MD(8,164'TVD)-TIME=10:35, MW= 10.9 PPG #1 MP-20/30 SPM=260/320 PSI #2 MP-20/30 SPM=260/320 PSI 12:00 - 14:00 2.00 DRILL P INTI DRILL 8-1/2"INTERMEDIATE HOLE F/11,123' MD T/11,313'MD(8,358'TVD) -540 GPM,2,765 PSI ON/2,600 PSI OFF -150 RPM,TQ=21K ON/24K OFF -WOB=23K -MW=10.9 PPG IN/10.9 PPG OUT -ECD=12.68 PPG(CALC ECD=11.71 PPG) -P/U=330K,S/O= 192K, ROT=235K 14:00 - 16:00 2.00 DRILL P INTI CIRC TO BRING ECD DOWN, DILUTE MUD WHILE ROTATING&RECIP F/11,218'T/ 11,313'MD -540 GPM,2,550 PSI -150 RPM,21-24K TQ 16:00 - 20:30 4.50 DRILL P INTI DRILL 8-1/2"INTERMEDIATE HOLE F/11,313' MD T/11,597'MD(8,561'TVD) - 540 GPM,2,650 PSI ON/2,490 PSI OFF -150 RPM,TQ= 19K ON/25K OFF -WOB=24K -MW=10.9 PPG IN/10.9 PPG OUT -P/U=330K, S/O= 197K,ROT=242K 20:30 - 21.00 0.50 DRILL P INTI GREASE WASH PIPE,RE-BOOT AMPHION DRILLERS CHAIR, RE-CALIBRATE BLOCK HEIGHT Printed 1/7/2013 1:26:41PM 1Vorth America -ALASKA- BP • Page 16 of 30 Operation Summary Report Common Well Name:Y-19 AFE No Event Type. RE-ENTER-ONSHORE(RON) Start Date:8/4/2012 End Date: 12/28/2012 X3-011 M2:DRILL(10,490,000.00) Project:Prudhoe Bay Site: PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time: 9/4/1988 12'00:00AM Rig Release: 8/7/2012 Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 21:00 - 00:00 3.00 DRILL P INTI DRILL 8-1/2"INTERMEDIATE HOLE Fl 11,597' MD T/11,885'MD(8,767'ND) - 540 GPM,2,630 PSI ON/2,590 PSI OFF -150 RPM,TQ=24K ON/25K OFF -WOB=17K -MW=10.9 PPG IN/10.9 PPG OUT -ECD=12.31 PPG(CALC ECD=11.65 PPG) P/U=358K,S/O=198K,ROT=245K AST=0 HRS,ART=5.58,ADT=5.58 HRS TOTAL BIT HRS=14.49,TOTAL JAR HRS= 51.98 SPR'S:11,692'MD(8,628'ND)-TIME=21:40, MW=10.9 PPG #1 MP-20/30 SPM=280/370 PSI #2 MP-20/30 SPM=260/370 PSI 12/8/2012 00:00 - 01:00 1.00 DRILL P INTI DRILL 8-1/2"INTERMEDIATE HOLE FROM 11,885'TO TD OF 11,961'MD(8,821'ND) -540 GPM,2,700 PSI ON/2,600 PSI OFF -150 RPM,TQ=25K ON/25K OFF -WOB=15K MW=10.9 PPG IN/10.9 PPG OUT -ECD=12.22 PPG(CALC ECD=11.66 PPG) -P/U=358K,S/O=200K,ROT=247K AST=0 HRS,ART=0.73,ADT=0.73 HRS TOTAL BIT HRS=15.22,TOTAL JAR HRS= 52.71 01:00 - 02:30 1.50 DRILL P INTI CIRC BOTTOMS UP WHILE ROT&RECIP F/ 11,961'T/11,881'MD -540 GPM,2,500 PSI -150 RPM,23-25K TQ -CONFIRM SAG RIVER IN BOTTOMS UP SAMPLE SPR'S:11,961'MD(8,821'ND)-TIME=02:30, MW=10.9 PPG #1 MP-20/30 SPM=260/340 PSI #2 MP-20/30 SPM=240/340 PSI 02:30 - 17:30 15.00 DRILL P INTI BACKREAM OUT OF HOLE TO MAD PASS F/ 11,961'T/10,234'MD AT 150 FPH -500 GPM,2,030 PSI -120 RPM,21K TQ 17:30 - 18:30 1.00 DRILL P INTI CIRCULATE BOTTOMS UP -520 GPM,2160 PSI -120 RPM,18K TQ MONITOR WELL-STATIC [18:30 - 19:30 1.00 DRILL P INTI RIH F/10,234'T/11,885'MD -MONITOR DISP VIA TRIP TANK 19:30 - 20:00 0.50 DRILL P INTI WASH&REAM T/11,961'MD TAGGING BOTTOM ON DEPTH -540 GPM,2,560 PSI -120 RPM,23-24K TQ Printed 1/7/2013 1.26:41PM North America -ALASKA- BP • Page 17 of 30 Operation Summary Report Common Well Name:Y-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/4/2012 End Date: 12/28/2012 X3-011 M2:DRILL(10,490,000.00) Project:Prudhoe Bay Site: PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:9/4/1988 12:00:00AM Rig Release:8/7/2012 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date I From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 20:00 - 00:00 4.00 DRILL P INTI DISPLACE WELL WITH NEW 10.9 PPG MUD WITH STRESS CAGE MATERIAL CIRC 3 SURFACE TO SURFACE VOLUMES WHILE ROTATING AND RECIPROCATING -540 GPM,2400 PSI -120 RPM,21-25K TO -MWD FAILURE AT 20:30 HRS MONITOR WELL FOR 10 MIN-STATIC SPR'S: 11,961'MD(8,821'TVD)-TIME=23:0, MW= 10.9 PPG #1 MP-20/30 SPM=300/380 PSI #2 MP-20/30 SPM=300/380 PSI 12/9/2012 00:00 - 03:00 3.00 DRILL P INTI POOH WITH DRILLING BHA ON ELEVATORS FROM 11,961'TO 7,905'MD 03:00 - 03:30 0.50 DRILL P INTI POOH AND L/D DOUBLES F/7,905'T/7,715' MD • ENCOUNTER TIGHT SPOT AT 7715'MD -40K OVERPULL -UNABLE TO WORK PAST 03:30 - 04:00 0.50 DRILL P INTI CBU WHILE ROTATING&RECIPROCATING F/ 7,715'T/7.660'MD 540 GPM,2,100 PSI -120 RPM,10K TQ -NO OBSTRUCTION OBSERVED 04:00 - 15:00 11.00 • DRILL P INTI ATTEMPT TO POOH ON ELEVATORS F/7,660' MD -30-40K OVERPULL BACKREAM OUT OF HOLE&STD BACK F/ 7,660'T/3,357'MD -540 GPM,2,050 PSI -120 RPM,5-10K TQ •15:00 - 15:30 0.50 DRILL P INTI PUMP OUT OF HOLE F/3,357'T/2,978'MD -540 GPM,1,620 PSI 15:30 - 16:00 0.50 DRILL P INTI CBU AT WINDOW -540 GPM,1,615 PSI MONITOR WELL-STATIC 16:00 - 16:30 0.50 DRILL P INTI RIH F/2,978'T/3,813'MD,DROP 2-3/8"OD DRILLPIPE DRIFT -MONITOR DISP VIA TRIP TANK 16:30 - 18:30 2.00 DRILL P INTI POOH F/3,831'T/893'MD -MONITOR DISP VIA TRIP TANK 18:30 - 20:30 2.00 DRILL P INTI POOH STANDING BACK 5"HWDP F/893'T/ 239'MD 20:30 - 21:30 1.00 DRILL P INTI L/D DRILLING BHA#5 F/239'MD AS PER SLB DD&BAKER REP -BIT GRADE 3-1-CT-C-X-I-NO-TD 21:30 - 22:30 1.00 BOPSUR P INTI CLEAN&CLEAR RIG FLOOR,R/D SURFACE EQUIP,MOBILIZE BHA FROM RIG FLOOR,C/O ELEVATORS&P/U 7"TEST JOINT 22:30 - 23:30 1.00 BOPSUR P INTI PULL WEAR RING,SET TEST PLUG,GO UPPER VBR PIPE RAMS TO 7"SOLID RAMS 23:30 - 00:00 0.50 BOPSUR P INTI TEST 7"RAMS WITH 7"TEST JOINT TO 250 LOW/3500 HIGH FOR 5/5 MIN 12/10/2012 00:00 - 01:00 1.00 CASING P INTI PULL TEST PLUG,SET WEAR RING,AND R/D TEST EQUIPMENT -SERVICE RIG Printed 1/7/2013 1:26:41PM . 1Vorth America-ALASKA- BP • Page 18 of 30 Operation Summary Report Common Well Name:Y-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/4/2012 End Date: 12/28/2012 IX3-011 M2:DRILL(10,490,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time. 9/4/1988 12.00:00AM Rig Release:8/7/2012 Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 01:00 - 03:00 2.00 CASING P INTI PREP LINER HANGER/PACKER AND CEMENT HEAD FOR LINER RUN -M/U 7"HANGER WITH 7"JOINT BELOW AND 5"DP PUPS ON TOP, STD BACK -P/U 7"CEMENT HEAD WITH 5"DP PUP AND FULL JOINT AND TQ UP 03:00 - 04:00 1.00 CASING P INTI R/U 7"HANDLING EQUIPMENT AND VOLANT CASING RUNNING TOOL 04:00 - 04:30 0.50 CASING P INTI PJSM FOR RUNNING 7"LINER 04:30 - 13:30 9.00 CASING P INTI RUN 7"LINER ASSEMBLY PER PROGRAM WITH VOLANT CASING RUNNING TOOL -P/U 7"SHOE TRACK WITH FLOAT SHOE FILL LINER AND VERIFY FLOATS HOLDING. FLOATS GOOD -BAKER LOCK ALL BTC CONNECTIONS BELOW LANDING COLLAR JOINT -P/U 7",26 LB-FT VT LINER,APPLY JET LUBE SEAL GUARD.TORQUE TURN 7"TO TQ OF 1'050 FT-LB. -MW 10.91N/10.9 OUT RUN 7"LINER TO 2,986'MD FILL EVERY JOINT -CIRCULATE EVERY 10 JOINTS LOSSES AT 1 BPH 13:30 - 14:30 1.00 CASING P INTI CIRC 1.5X BU AT WINDOW -3 BPM,200 PSI 14:30 - 18:30 4.00 CASING P INTI CONT RUN 7"LINER FROM 2,986'TO4,602' MD -FILL EVERY JOINT BREAK -CIRCULATE EVERY 10 JOINTS 18:30 - 19:00 0.50 CASING P INTI CBU PER ODE/ETL -3 BPM,270 PSI 19:00 - 00:00 5.00 CASING P INTI RUN 7"LINER FROM 4,602'TO 6,609'MD -FILL EVERY JOINT BREAK -CIRCULATE EVERY 10 JOINTS 12/11/2012 00:00 - 06:00 6.00 CASING P INTI RUN 7",26 LB-FT VT HC LINER WITH VOLANT CRT FROM 6,609'MD TO 9,005'MD -APPLY JET LUBE SEAL GUARD.TORQUE TURN 7"TO TQ OF 11,950 FT-LB. -MW10.9IN/10.9OUT -FILL EVERY JOINT -CIRCULATE EVERY 10 JOINTS 06:00 - 07:00 1.00 CASING P INTI R/D VOLANT TOOL,BAILS,ELEVATORS,P/U LINER HANGAR 07:00 - 08:30 1.50 CASING P INTI RIH T/ 9,102'CBU @ 3BPM,550 PSI,UP WT- 222K,DN WT-135K,BBLS PUMPED-214 08:30 - 12:00 3.50 CASING P INTI RIH F/ 9,102 T/11,648',@ 11,648'HOLE TIGHT -DN WT-40K, UP WT-400K -STAGE PUMPS UP TO 5 BPM,900 PSI -WORK PIPE WHILE CIRCULATING Printed 1/7/2013 1:26:41PM North America -ALASKA- BP ` Page 19 of 30 Operation Summary Report Common Well Name:Y-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/4/2012 End Date: 12/28/2012 X3-011 M2:DRILL(10,490,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.: DOYON 25 Spud Date/Time:9/4/1988 12:00:OOAM Rig Release:8/7/2012 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 - 21:30 9.50 CASING P INTI CONT WORK STUCK PIPE AT 11,648'MD -DN WT=40K, UP WT=MAX 500K,15K TQ -ATTEMPT TO ESTABLISH CIRCULATION, STAGE PUMPS TO 5 BPM,WITH MAX PRESSURE SET AT 1950 PSI UNABLE TO ESTABLISH CIRCULATION, UNABLE TO PULL UP,ONLY ABLE TO GO -DOWN -COMMUNICATIONS WITH ROTARY SUPT AND ODE FOR FORWARD PLANNING. -DBL IN HOLE WORKING TIGHT HOLE TO 11,936'MD 21:30 - 23:00 1.50 CASING P INTI P/U BAKER ROTATING CEMENT HEAD W/5" DP SINGLE,WORK DOWN TO 11,960'MD 3 RPM,15K TQ -800 PSI PUMP PRESSURE-STILL PACKED OFF -DISCUSSED OPERATIONS CHANGE NOTICE WITH ROTARY SUPT AND ODE, FORWARD PLAN FOR OPERATIONS WITH PIPE ON BOTTOM 23:00 - 00:00 1.00 CASING - P INTI CONT WORK PIPE FROM 11,961'TO 11,941' MD ATTEMPT TO ESTABLISH CIRCULATION- UNSUCCESSFUL 12/12/2012 00:00 - 00:30 0.50 CEMT P INTI BLOW DOWN TOP DRIVE THRU THE CEMENT HEAD, SET MAX PRESSURE TO 1950 PSI,BROUGHT PUMPS UP TO 3 BPM WITH 1500 PSI.SAW A PRESSURE DROP TO INDICATE CIRCULATION -ESTABLISHED CIRCULATION, -BROUGHT PUMPS BACK TO 2 BPM WITH 780 PSI 00:30 - 06:00 5.50 CEMT P INTI CIRCULATING TO CONDITION MUD FOR 7" LINER CEMENT JOB -STAGE PUMPS FROM 2 BPM WITH 780 PSI TO 5 BPM WITH 920 PSI.ALLOWING PRESSURES TO STABILIZE DURING STAGING MW IN 10.9 PPG, MW OUT 10.9 PPG -SAW ALMOST NO CUTTINGS AT BOTTOMS UP,ONLY LCM PRODUCTS 06:00 - 09:30 3.50 CEMT P INTI CONTINUED CIRCULATING TO CONDITION MUD FOR CEMENT JOB. NOTIFIED AOGCC- LOU GRIMALDI-OF IMPENDING BOPE TEST. 43 BBLS LOST DURING LINER RUN& CIRCULATION 09:30 - 13:30 4.00 CEMT N WAIT 11,961.0 INTI WAIT ON CH2 VAC TRUCK,DISPLACEMENT MUD -B/D TD,R/U CEMENT HOSE TO CEMENT HEAD -CONTINUE CIRCULATING @ 5 BPM,825 PSI Printed 1/7/2013 1:26:41PM North America -ALASKA- BP • Page 20 of 30 Operation Summary Report Common Well Name:Y-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/4/2012 End Date: 12/28/2012 X3-011 M2:DRILL(10,490,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.: DOYON 25 Spud Date/Time:9/4/1988 12:00:OOAM Rig Release:8/7/2012 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.39ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) 13:30 - 16:30 3.00 CEMT P (ft) INTI CIRCULATE 5 BPM,750 PSI -CEMENT 7"LINER AS FOLLOWS: -HOLD PJSM WITH RIG CREW,SLB CEMENT CREW AND BPXA .v CEMENT PUMPING: -PUMP 25 BBLS 11 PPG MUD PUSH AT 5 BPM PUMP 35.1 BBLS,12.0 PPG LITECRETE, CtMENT AT 3.0 BPM,YIELD 1.63 CU FT/SX 11.21 SX), .2%ANTIFOAM,.7%DISPERSANT, .3%FLUID LOSS ADD.,.040 GAUSX RETARDER PUMP 19 BBLS 15 A PPG r.1 ASS o.rFRAFniT AT 4.5 BPM,YIELD 1.17 CU FT/SX(91 SX), -DROP DRILL PIPE WIPER DART.POSITIVE INDICATION DART LEFT CEMENT HEAD. -DISPLACE WITH CEMENTERS WITH 10.9 PPG LSND MUD AT 4.5 BPM,500 PSI -NO RECIPROCATION THROUGHOUT JOB -45.6 BBLSAWAY:LATCH UP WIPER PLUG WITH 966 PSI -DISPLACE AT 5 BPM,PRESSURE STEADILY INCREASING TO 1000 PSI .-372 BBLS AWAY:SLOW PUMP TO 2 BPM PRIOR TO BUMP -BUMP PLUG AT 392 BBLS,966 PSI -PRESSURED UP ON PLUG TO 3,966-PSI TO SET LINER HANGER,SLACK OFF TO CONFIRM HANGER SET -BLEED OFF PRESSURE&CHECK FLOATS. FLOATS HOLDING. -P/U TO CONFIRM RUNNING TOOL RELEASED, EXPOSE DOGS -ROTATE 15 RPM,S/0 SET ZXP PACKER, PRESSURE TO 500 PSI -P/U MONITOR BLEED OFF NO LOSSES DURING CEMENT JOB 16:30 - 17:00 0.50 CEMT P INTI BLOW DOWN AND RIG DOWN CEMENT HEAD 17:00 - 18:00 1.00 CEMT P INTI CIRCULATE BOTTOMS UP X 2 -14 BPM,640 PSI ABOVE LINER TOP 18:00 - 22:30 4.50 CEMT P INTI POOH LAYING DN 5"DOUBLES IN PIPESHED -LAY DOWN LINER RUNNING TOOL,PER BAKER REP 22:30 - 00:00 1.50 CEMT P INTI RIH WITH 29 STDS FROM DERRICK -POOH LAYING DN 5"DOUBLES IN PIPESHED 12/13/2012 00:00 - 09:00 9.00 CEMT P INTI WAITING FOR CEMENT TO REACH 500 PSI -RIH WITH 5"DP FROM DERRICK,LAY DOWN SINGLES 09:00 - 11:30 2.50 CEMT P INTI RIG UP TO TEST LINER -PRESSURE TEST LINER TO 250 PSI LOW FOR 5 MIN,4000 PSI FOR 30 MIN,ALL TESTS CHARTED-TEST PASSED CRITERIA SET FORTH IN CRT-AK-10-45 -SENT TEST CHART&CRITERIA CALCULATOR TO ROTARY SUPT JOHN RALL FILLING IN FOR OPERATIONS TEAM LEAD MIKE SCHULTZ RECIEVED AUTHORIZATION TO PROCEED. 11:30 - 13:30 2.00 CEMT P INTI INSTALL AND TEST DRILL LINK TO THE AMPHION SYSTEM PER NOV REP Printed 1/21/2013 2:01:55PM North America -ALASKA- BP Page 21 of 30 Operation Summary Report Common Well Name:Y-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/4/2012 End Date: 12/28/2012 X3-011 M2:DRILL(10,490,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.: DOYON 25 Spud Date/Time: 9/4/1988 12:00:OOAM Rig Release:8/7/2012 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 13:30 - 15:30 2.00 CEMT P INTI WASH AND RINSE STACK -PULL WEAR RING AND INSTALL TEST PLUG, AND PRESSURE TEST,CAMERON RAN IN4 LOCK DOWN SCREWS -250 PSI LOW&3500 PSI HIGH-GOOD TEST 15:30 - 18:00 2.50 CEMT P INTI PULL PS-21 SLIPS,PRESSURE WASH STRIP O MATIC&CHANGE OUT STRIPPING -RUBBERS -REMOVE UPPER AND LOWER PIPE RAMS AND REMOVE CAP FROM ANNULAR, REMOVE ELEMENT 18:00 - 00:00 6.00 CEMT P INTI CLEAN OUT AND INSPECT RAM CAVITY AND ANNULAR CAP, RE-INSTALL NEW ELEMENT, RE-INSTALL CAP,INSTALL NEW UPPER& LOWER PIPE RAMS,SLIDE JOES BOX INTO PLACE,RE-INSTALL STRIP-O-MATIC, DRILLING RISER,SHOVEL THICK MUD FROM FLOWLINE,AIR UP BOOTS,GREASE& RE-INSTALL PS-21 SLIPS,PULL OLD RAMS& ELEMENT TO RIG FLOOR TO SEND OUT 12/14/2012 00:00 - 02:30 2.50 CEMT P INTI R/U BOP TEST EQUIPMENT,FUNCTION NEW ANNULAR ELEMENT SEVERAL TIMES PRIOR TO TESTING 02:30 - 10:30 8.00-- CEMT P INTI TEST ROPE.TESTED ANNULAR RAMS TO 250 PSI LOW/4000 PSI HIGH FOR 5 MIN EACH. TEST 4"&5"DP.ALL TESTS CHARTED.SEE BOP TEST ATTACHMENT. PERFORMED ACCUMULATOR DRAWDOWN TEST: -ACCUMULATOR PSI=3075,MANIFOLD PSI= 1500 -ACCUMULATOR PSI AFTER FUNCTIONING BOPE=1750-PSI -RECOVERY TO FULL SYSTEM PRESSURE= 97 SECONDS. -6 NITROGEN BOTTLES AVERAGE PRESSURE=2100-PSI BOP CLOSING TIMES: -ANNULAR PREVENTER=25-SECONDS -UPPER PIPE RAMS=18-SECONDS -LOWER PIPE RAMS=20-SECONDS -BLIND/SHEAR RAMS=30-SECONDS -HCR KILL VALVE=3-SECONDS -HCR CHOKE=3-SECONDS. REFERENCED DDI BOP TESTING SOP FOR ALL TESTING. BOPE TEST WITNESSED BY AOGCC-BOB NOBLE AT 04:00 HRS ON 12/14/2012,DOYON TOOLPUSHER-SAM DYE, AND BP WSL-MIKE HEFLEY. 10:30 - 11:30 1.00 CEMT P INTI RIG DOWN BOP TEST EQUIPMENT,B/D TOPDRIVE, CHOKE&KILL LINES, DRAIN STACK TO PULL TEST PLUG&SET WEAR BUSHING 11:30 - 13:00 1.50 CEMT P INTI CHANGE OUT SAVER SUB FROM 4-1/2"IF TO 4"XT-39 13:00 - 13:30 0.50 CEMT P INTI PJSM FOR RIH&INSTALL 5"INSERTS IN PS-21 SLIPS Printed 1/7/2013 1:26:41PM • North America-ALASKA- BP rw Operation Summary Report . Common Well Name:Y-19 AFE No Event Type. RE-ENTER-ONSHORE(RON) Start Date: 8/4/2012 End Date. 12/28/2012 X3-011M2:DRILL(10,490,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:9/4/1988 12:00 00AM Rig Release. 8/7/2012 Rig Contractor:DOYON DRILLING INC. UWI Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 13:30 - 14:00 0.50 CEMT P INTI RIH FROM DERRICK TO 1,137'MD -MONITOR DISP VIA TRIP TANK 14:00 - 15:30 1.50 CEMT P INTI POOH LAYING DOWN 5"SINGLES FROM 1,137 MD -MONITOR DISP VIA TRIP TANK 15:30 - 16:30 1.00 CEMT P INTI CLEAR PIPESHED,PREP 4"DOUBLES FOR RIH,CHANGE OUT ELEVATORS&PS-21 SLIPS 16:30 - 22:00 5.50 CEMT INTI RIH WITH 4"DOUBLES FROM PIPESHED TO 5,707'MD -MONITOR DISP VIA TRIP TANK POOH ON ELEVATORS FROM 5,707'TO 5,327' MD 17:30-4 GAL LEAK OF DRILLING MUD AT THE SUPER SUCKER CONNECTION AT THE CUTTINGS TANK.SPILL RESPONSE NOTIFIED.ALL 4 GAL IN CONTAINMENT AND CLEANED UP.TRACTION REPORT TO FOLLOW. 22:00 - 00:00 2.00 CEMT _P INTI PJSM FOR STRIPPING,TABLE TOP KICK WHILE TRIPPING DRILL STRIPPING DRILL IKICK WHILE TRIPPING DRILL HELD SECURE WELL WITH TIW STABBED AND ANNULAR SHUT -WITH WELL SHUT IN, PRESSURE UP TO 200 PSI -STRIP IN HOLE 2 STANDS ROTATING VARIOUS CREW MEMBERS ON CHOKE -HOLD AAR 12/15/2012 00:00 - 01.00 1.00 CEMT P INTI PJSM FOR STRIPPING: STRIPPING DRILL -WELL SHUT IN FROM PREVIOUS CREW DOING DRILL. • -300 PSI HELD BELOW ANNULAR -STRIP IN HOLE 2 STANDS ROTATING VARIOUS CREW MEMBERS ON CHOKE -HOLD AAR 01:00 - 04:30 3.50 CEMT P INTI POOH AND STAND BACK 4"DRILL PIPE. -MONITOR HOLE FILL ON TRIP TANK 04:30 - 07:30 3.00 CEMT P INTI MU 6-1/8"BUILD BHA#6 PER SLB DD 07:30 - 00:00 16.50 CEMT P INTI PU 4"DP FROM SHED AND RIH FROM 181'TO 1,226'MD -SHALLOW HOLE TEST FOR MWD, -200 GPM ,800 PSI-GOOD TEST -CONT TRIP F/1,226'TO 11,565'MD -MONITORING TRIP VIA TRIP TANK, FILLING PIPE EVERY 20 STANDS 12/16/2012 00:00 - 04:30 4.50 CEMT P INTI PJSM,SLIP AND CUT 149'OF DRILL LINE, SERVICE TOP DRIVE,CALIBRATE BLOCK HEIGHT 04:30 - 05:00 0.50 CEMT P INTI RIH WITH STANDS TO TOP OF LANDING COLLAR -TAG AT 11,877'MD 05:00 - 06:30 1.50 CEMT P INTI DRILL SHOE TRACK AND 20'OF NEW FORMATION TO 11,949'MD -250 GPM,2,530 PSI -40 RPM,9K TQ Printed 1/7/2013 1.26-41PM •WNorth America ALASKA- BP • Page s tero� ie ` r� , . , ..,_ ..„,,i i a a a i,i i i a,. i a..i,a r,i t A t.. . .,, , Operation Summary Report Common Well Name:Y-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:8/4/2012 End Date: 12/28/2012 X3-011 M2:DRILL(10,490,000.00) Project: Prudhoe Bay Site:PB Y Pad Rig Name/No.: DOYON 25 Spud Date/Time:9/4/1988 12:00:00AM Rig Release:8/7/2012 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 06:30 - 09:00 2.50 CEMT P INTI DISPACE WELL TO 8.6 PPG POWERPRO MUD -235 GPM,1,480 PSI 09:00 - 10:00 1.00 CEMT P INTI PERFORM NEGATIVE PRESSURE TEST FOR 30 MIN(GOOD) -VISUAL CONFIRMATION OF NO FLOW -RECEIVED VERBAL&WRITTEN AUTHORIZATION TO PROCEED FROM AK, D&C BASE OPERATIONS SUPERINTENDENT 10:00 - 13:00 3.00 CEMT P INTI CONT DRILLING SHOE TRACK FROM 11,949' TO 11,981'MD -254 GPM,1,600 PSI -40 RPM,6K TQ SPR'S: 11,950'MD(8,817'TVD)-TIME= 10:20, MW=8.6 PPG #1 MP-20/30 SPM=480/640 PSI ,#2 MP-20/30 SPM=480/630 PSI 13:00 - 14:00 1.00 CEMT . P INTI ROTATE&RECIPROCATE FROM 11,959'TO 11,944'MD -254 GPM,1,545 PSI -40 RPM 14:00 - 14:30 0.50 CEMT P INTI POOH TO 7"SHOE&FITTEST . -360 PSI FOR 10 MIN _EMW=9.4 PPG(GOOD). -APPROVAL TO PROCEED FROM ODE 14:30 - 15:00 0.50 DRILL' P PROD1 ROTATE&RECIPROCATE FROM 11,959'TO 11,944'MD -SPOT 40 BBL STEEL LUBE PILL OUT OF BIT 15:00 - 00:00 9.00 DRILL P PROD1 DRILL 6-1/8"PRODUCTION HOLE FROM 11,981'MD TO 12,1289'MD(8,908'TVD) -254 GPM,1,700 PSI ON/1,584 PSI OFF -0 RPM,TQ=OK ON/6K OFF -WOB=7-10K MW=8.6 PPG IN/8.6PPG OUT -P/U=210K,S/0=155K, ROT=185K -RECOVERED STEEL LUBE PILL TO CUTTINGS TANK AST=3.95 HRS,ART=1.24,ADT=5.19 HRS TOTAL BIT HRS=5.19,TOTAL JAR HRS=5.5 SPR'S: 11,950'MD(8,817'TVD)-TIME=10:20, MW=8.6 PPG #1 MP-20/30 SPM=480/640 PSI #2 MP-20/30 SPM=480/630 PSI 12/17/2012 '00.00 - 12:00 12.00 DRILL P PROD1 DRILL 6-1/8"PRODUCTION HOLE FROM 12,128'MD TO 12,434'MD(8,903'TVD) -251 GPM,1,930 PSI ON/1,620 PSI OFF -40 RPM,TQ=7-8K ON/8K OFF -WOB=14K -MW=8.6 PPG IN/8.6 PPG OUT -P/U=205K,S/O= 180K, ROT=160K AST=3.17 HRS,ART=1.28,ADT=4.45 HRS TOTAL BIT HRS=9.64,TOTAL JAR HRS=9.64 SPR'S: 12,417'MD(8,878'TVD)-TIME= 16:00, MW=8.6 PPG #1 MP-20/30 SPM=600/760 PSI #2 MP-20/30 SPM=600/760 PSI Printed 1/7/2013 1:26:41PM North America -ALASKA- BP Page 24 of 30 Operation Summary Report Common Well Name:Y-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/4/2012 End Date: 12/28/2012 X3-011M2:DRILL(10,490,000.00) Project: Prudhoe Bay Site: PB Y Pad Rig Name/No.: DOYON 25 Spud Date/Time:9/4/1988 12:00:OOAM Rig Release: 8/7/2012 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 - 00:00 12.00 DRILL P PROD1 DRILL 6-1/8"PRODUCTION HOLE FROM 12,434'MD TO 12,682'MD(8,831'TVD) -253 GPM,2,000 PSI ON/1,850 PSI OFF -40 RPM,TQ=7-8K ON/6K OFF -WOB=20K -MW=8.6 PPG IN/8.7 PPG OUT -P/U= 194K, S/O= 154K, ROT= 176K AST=3.4 HRS,ART=3.84,ADT=7.24 HRS TOTAL BIT HRS= 16.88,TOTAL JAR HRS= 16.88 SPR'S: 12,512'MD(8,831'TVD)-TIME= 16:00, MW=8.6 PPG #1 MP-20/30 SPM=600/760 PSI #2 MP-20/30 SPM=600/760 PSI 12/18/2012 00:00 - 03:00 3.00 DRILL P PROD1 DRILL 6-1/8"PRODUCTION HOLE FROM 12,682'MD(8,831'TVD)TO 12,734'8,828'TVD -253 GPM,2,000 PSI ON/1,850 PSI OFF -40 RPM,TQ=7-8K ON/6K OFF -WOB=20K -MW=8.6PPG IN!8.7PPG OUT ENCOUNTERED LOST CIRCULATION, STOPPED DRILLING, PICKED UP OFF BOTTOM -ESTABLISHED LOSS RATE SEVERITY AT FULL DRILLING RATE OF 250 GPM -50-60 BPH LOSSES AT 250 GPM -STATIC LOSS RATE AT 40 BPH -BEGIN MIXING BLEND#1 LCM PILL FROM LOST CIRCULATION FLOW CHART -NOTIFIED ODE AND ROTARY SUPT OF LOSSES AND PLAN TO RETURN TO DRILLING WITH REDUCED RATE AND CLOSE MONITORING 03:00 - 12:00 9.00 DRILL P PROD1 DRILL 6-1/8"PRODUCTION HOLE FROM 12,734'8,828'TVD TO 12,929'MD-8829'TVD -210-250 GPM,1550-2000 PSI ON/1,375-1780 PSI OFF, -40 RPM, TQ=7-8K ON/6K OFF -WOB= 15K -MW=8.6 PPG IN/8.7 PPG OUT -P/U=205K, S/O= 180K, ROT= 160K AST=2.92 HRS,ART=2.13,ADT=5.05 HRS TOTAL BIT HRS=21.93,TOTAL JAR HRS= 21.9 SPR'S: 12,803'MD(8,823'TVD)-TIME=06:30, MW=8.6 PPG #1 MP-20/30 SPM=660/840 PSI #2 MP-20/30 SPM=640/820 PSI -LOSSES STABILIZED AT 15-20 BPH -40 BBLS OF 40 PPB BLEND#1 LCM PILL READY Printed 1/7/2013 1:26:41PM North America -ALASKA- BP . Page 25 of 30 Operation Summary Report Common Well Name:Y-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date: 8/4/2012 End Date: 12/28/2012 X3-011 M2:DRILL(10,490,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time: 9/4/1988 12:00:OOAM Rig Release: 8/7/2012 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 - 14:00 2.00 DRILL P PROD1 DRILL 6-1/8"PRODUCTION HOLE FROM 12,929'MD-8829'TVD TO 12,993'MD-8822 TVD -250 GPM,2000 PSI ON/1780 PSI OFF, -40 RPM,TQ=7-8K ON/6K OFF -WOB=15K -MW=8.6 PPG IN/8.7 PPG OUT -P/U=205K,S/O=156K,ROT=170K AST=.41 HRS,ART=3,ADT=.71 HRS TOTAL BIT HRS=22.6,TOTAL JAR HRS=22.6 SPR'S: 12,992'MD(8,822'ND)-TIME=14:00, MW=8.6 PPG #1 MP-20/30 SPM=600/760 PSI #2 MP-20/30 SPM=600/760 PSI -LOSSES STABILIZEQ.AT 15-20 BPH 14:00 - 16:30 2.50 DRILL P PROD1 ROTATE AND RECIPROCATE WHILE CIRCULATING 2 BOTTOMS UP -250 GPM,1730 PSI,WITH 40 RPM -PU-202K,SOW-154K,ROT-177K -MONITOR WELL,WELL STATIC -MW=8.6PPGIN/8.7PPGOUT -LOST 11 BBLS DURING CIRCULATION --MINIMAL CUTTINGS BROUGHT UP WITH BOTTOMS UP 16:30 - 17:30 1.00 DRILL P PROD1 POOH ON ELEVATORS F/12,993'MD TO 11,950'MD -MONITORING DISPLACEMENT VIA THE TRIP TANK -PULLED 30K OVER AT 12,240'MD&12,325' MD -LOST 2 BBLS DURING TRIP 17:30 - 18:00 0.50 DRILL P PROD1 DROP 1.76"BALL TO SHIFT MI WELL COMMANDER CIRCULATION SUB -CIRCULATE BALL DOWN WITH 2 BPM ,600 PSI - CONFIRMED WELL COMMANDER SHIFTED OPEN WITH PRESSURE INCREASE TO 2100 PSI AND A DROP BACK TO 400 PSI 18:00 - 19:00 1.00 DRILL P PROD1 ROTATE AND RECIPROCATE WHILE CIRCULATING BOTTOMS UP -475 GPM ,1540 PSI ,WITH 80 RPM -PU-196K,SOW-164K, ROT-177K -MONITOR WELL,WELL STATIC -MW=8.6 PPG IN/8.7 PPG OUT -MINIMAL CUTTING BROUGHT UP WITH BOTTOMS UP 19:00 - 19:30 0.50 DRILL P PROD1 DROP 1.76"BALL TO SHIFT MI WELL COMMANDER CIRCULATION SUB CLOSED -CIRCULATE BALL DOWN WITH 2 BPM ,600 PSI - CONFIRMED WELL COMMANDER SHIFT CLOSED WITH PRESSURE DIFF 19:30 - 00:00 4.50 DRILL P PROD1 PJSM FOR PULLING OUT OF THE HOLE FOR BHA CHANGE PUMPED 20 BBL SLUG, BLOW DOWN TOP DRIVE -POOH F/11,950'MD TO 2170'MD -MONITORING DISPLACEMENT VIA THE TRIP TANK TOTAL 24 HR LOSSES 265 BBLS Printed 1/7/2013 1:26:41PM North America -ALASKA- BP Page 26 of 30 Operation Summary Report Common Well Name:Y-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date. 8/4/2012 End Date: 12/28/2012 X3-011M2 DRILL(10,490,000.00) Project:Prudhoe Bay Site: PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:9/4/1988 12.0O:OOAM Rig Release: 8/7/2012 Rig Contractor: DOYON DRILLING INC. UWI. Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations + (hr) (ft) 12/19/2012 00:00 - 03:00 3.00 DRILL P PROD1 POOH F/ 2170'MD TO 1600'MD -LD HWDP F/1600'TO 1226'MD, CONT POOH TO 181'MD -LD BHA PER SLB DD F/181'TO SURFACE- MONITOR HOLE PRIOR TO PULLING BHA THROKUGH THE STACK-WELL STATIC. -MONITORING DISPLACEMENT VIA THE TRIP "TANK 03:00 - 04:00 1.00 DRILL P PROD1 CLEAN&CLEAR RIG FLOOR -PREPARE TO PU TOOLS FOR NEXT RUN 04:00 - 06:00 2.00 DRILL P PROD1 PICK UP AND MAKE UP 6-1/8"PRODUCTION BHA#7 PER SLB MWD&DD DIRECTION TO 128' -PWD/DIR/GR AT BIT -RES/NEU/DEN./ACOUSTIC -WELL COMMANDER CIRC SUB 06:00 - 06:30 0.50 DRILL P .PROD1 PJSM FOR LOADING SOURCE WITH RIG CREW AND SLB REPS -LOAD SOURCE PER SLB DIRECTION 06:30 - 07:30 1.00 DRILL _P PROD1 CONT MAKING UP BHA F/128'TO 334' 07:30 - 08:00 0.50 DRILL P PROD1 SERVICE TOP DRIVE --SERVICE BLOCKS CROWN SHEAVES 08:00 - 13:30 5.50 DRILL P PROD1 TIH WITH 6-1/8"PRODUCTION BHA ON 4" XT-39 DP FROM 234'9,450' -MONITORING DISPLACEMENT VIA TRIP TANK, FILLING PIPE EVERY 20 STANDS -SHALLOW HOLE TEST MWD @ 2,710' -250 GPM,850 PSI-GOOD TEST 13:30 - 18:00 4.50 DRILL P PROD1 LOG DOWN ACOUSTIC CEMENT BOND F/ 9,450'MD TO TO 12,092'MD AT 900 FT/HR 18:00 - 20:00 2.00 DRILL P PROD1 TIH WITH 6-1/8"PRODUCTION BHA ON 4" XT-39 DP FROM 12,092'MD TO 12,993' -ENCOUNTERED TIGHT SPOT AT 12,325'MD -RE-TAKE SURVEYS AT 12,092',12,124', 12,155',12,186'AND 12,219'MD -10 BBL LOSS FOR THE TRIP -MONITORING DISPLACEMENT VIA TRIP TANK,FILLING PIPE EVERY 20 STANDS 20:00 - 00:00 4.00 DRILL P PROD1 DRILL 6-1/8"PRODUCTION HOLE FROM 12,993'MD TO 12,341'MD(8,818'ND) -267 GPM,1,910 PSI ON/1,830 PSI OFF -150 RPM,TQ=8-9K ON/6K OFF -WOB=9K -MW=8.7 PPG IN/8.7+PPG OUT -P/U=192K,S/O=154K,ROT=160K AST= HRS,ART=2.02,ADT=2.02 HRS TOTAL BIT HRS=2.02,TOTAL JAR HRS=25.7 SPR'S: 12,992'MD(8,822'ND)-TIME=20:00, MW=8.7PPG #1 MP-20/30 SPM=500/660 PSI #2 MP-20/30 SPM=520/660 PSI TOTAL 24 HR LOSSES=1689 Printed 1/7/2013 1.26:41PM North America-ALASKA- BP • W. Page 27 of 30 Operation Summary Report Common Well Name:Y-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:8/4/2012 End Date: 12/28/2012 X3-011 M2:DRILL(10,490,000.00) Project: Prudhoe Bay Site: PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:9/4/1988 12:00:00AM Rig Release:8/7/2012 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12/20/2012 00:00 - 04:30 4.50 DRILL P PROD1 DRILL 6-1/8"PRODUCTION HOLE FROM 12,341'MD(8,818'TVD) -DRILLING WITH SLIGHT LOSSES FROM 12,341'TO 13,579',3-5 BPH -DRILLED INTO A FRACTURE AT 13,579', LOSSES INCREASED. -INITIAL LOSS RATE AROUND 80 BPH, STOPPED DRILLING AND TOOK A STATIC LOSS RATE-STATIC LOSS=0 BPH -DRILLED AHEAD FROM 13,579',TO 13,722', LOSSES INCREASING TO 65 BPH.STOPPED DRILLING AND TOOK STATIC LOSS RATE OF 3 BPH. -NOTIFIED ODE AND ROT SUPT OF LOSSES, AND PRESCRIBED LOST CIRCULATION PLAN -PUMPED 80 BBLS LCM PILL BLEND#1 AND #2 AS PER MI LOST CIRCULATION FLOW CHART. -LOSS RATES AFTER LCM PILLS.3 BPH STATIC LOSS,30 BPH DYNAMIC LOSS AT 250 GPM SPR'S: 12,436'MD(8,819'TVD)-TIME=00:40, MW=8.7 PPG #1 MP-20/30 SPM=560/740 PSI #2 MP-20/30 SPM=560/740 PSI 04:30 - 06:00 1.50 DRILL P PROD1 -DRILLED AHEAD FROM 13,722'TO 13,840' MD -260 GPM,1,910 PSI ON/1,830 PSI OFF -150 RPM,TQ=8-9K ON/6K OFF -WOB=9K -MW=8.7 PPG IN/8.7+PPG OUT -P/U=191K,S/O=151K, ROT=171K _ LOST RETURN FLOW AT 13,840' 06:00 - 10:00 4.00 DRILL P PROD1 LOST RETURN FLOW AT 13,840' -MONITOR LOSSES: -190 BPH STATIC LOSS RATE,330 BPH DYNAMIC LOSS RATE AT 250 GPM -CONTACTED ODE AND ROT TL FOR PLAN FORWARD DISCUSSION. PUMPED 70 BBLS OF THE 40 PPB BLEND#1 AND BLEND#2 FROM THE LOST CIRCULATION FLOW CHART -24 BPH STATIC LOSS,110 BPH DYNAMIC LOSS AT 250 GPM AFTER PILLS PUMPED 10:00 - 12:00 2.00 DRILL P PROD1 -DRILLED AHEAD FROM 13,840'MD TO 13,986'MD,8823'TVD -260 GPM,1,980 PSI ON/1,920 PSI OFF -150 RPM,TQ=10K ON/9K OFF -WOB=12K -MW=8.7 PPG IN/8.7+PPG OUT -P/U=192K,S/O=152K, ROT=171K AST= HRS,ART=4.29,ADT=4.29 HRS TOTAL BIT HRS=6.31,TOTAL JAR HRS=30 Printed 1/7/2013 1:26:41 PM North America-ALASKA-BP • Pa•e 28 of 30 Operation Summary Report Common Well Name. Y-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:8/4/2012 End Date: 12/28/2012 1X3-011 M2:DRILL(10,490,000.00) Project: Prudhoe Bay Site: PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:9/4/1988 12:00:00AM Rig Release:8/7/2012 Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 - 20:00 8.00 DRILL P PROD1 -DRILLED AHEAD FROM 13,986'MD TO 14,670' ,8784'TVD.LOSS RATES AT 50 TO 85 BPH WHILE DRILLING -260 GPM,1,980 PSI ON/1,920 PSI OFF -150 RPM,TQ= 10K ON/9K OFF -WOB=12K -MW=8.7 PPG IN!8.7+PPG OUT -P/U= 192K,S/O=152K,ROT= 171K REVERSE DRILLING BREAK AT 14,600', ROP SLOWED FROM 170 FPR TO 100 FPH -LOST RETURNS AT 14,661' -LOSING 200-220 BPH WHILE PUMPING AT DRILL RATE 250 GPM 20:00 - 22:30 2.50 DRILL P PROD1 CALLED ODE&ROTARY TL FOR LOST CIRCULATION PLAN FORWARD -PUMPED 40 BBLS OF 40 PPB LCM PILL, SHUT DOWN AND MONITORED THE WELL STATIC LOSS RATE AT 0 -DYNAMIC LOSSES AT 158 BPH AT 211 GPM, -PUMPED A SECOND 40 BBL,40 PPB LCM PILL. SHUT DOWN AND MONITOR WELL FOR STATIC LOSS -STATIC LOSS-0, DYNAMIC LOSSES AT 90 BPH WITH 250 GPM 22:30 - 00:00 1.50 DRILL P PROD1 -DRILLED AHEAD FROM 14,670',8784'TVD TO 14,766'MD 8786 TVD -260 GPM,1,880 PSI ON/1,800 PSI OFF -150 RPM,TQ=10K ON/9K OFF 1 -WOB=12K -MW=8.7 PPG IN!8.7+PPG OUT -P/U=189K, S/O=152K, ROT=168K LOSS RATE AT 75 BPH 24 HR MUD LOSS 1924 BBLS 12/21/2012 00:00 - 12:00 12.00 DRILL P PROD1 -DRILLING AHEAD 6-1/8"PRODUCTION INTERVAL FROM 14,766'MD 8786 TVD TO 15,526'MD 8,786'TVD -260 GPM,1,880 PSI ON/1,800 PSI OFF -150 RPM,TQ= 10K ON/9K OFF WOB=12K -MW=8.7 PPG IN/8.7+PPG OUT -P/U= 189K, S/0=152K,ROT= 168K LOSS RATE- 75 BPH, PUMP 60 BBL 40 PPB LCM PILL. AST= HRS,ART=7.28,ADT=7.28 HRS TOTAL BIT HRS= 19.39,TOTAL JAR HRS=41 SPR'S: 15,334'MD(8,777'TVD)-TIME=09:00, MW=8.6 PPG #1 MP-20/30 SPM=540/660 PSI #2 MP-20/30 SPM=480/660 PSI TOUR LOSSES AT 873 BBLS Printed 1/7/2013 1:26:41PM North America-ALASKA- BP11111 Page 29 of 30 .,u Operation Summary Report Common Well Name:Y-19 AFE No Event Type:RE-ENTER-ONSHORE(RON) Start Date: 8/4/2012 End Date: 12/28/2012 X3-011 M2:DRILL(10,490,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:9/4/1988 12:00:00AM Rig Release: 8/7/2012 Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12:00 - 17:30 5.50 DRILL P PROD1 -DRILLING AHEAD 6-1/8"PRODUCTION INTERVAL TO TD FROM 15,526'MD 8786 TVD TO 15,850'MD 8,769 TVD -260 GPM,1,880 PSI ON/1,800 PSI OFF -150 RPM,TQ=10K ON/9K OFF WOB=12K -MW=8.7 PPG IN/8.7+PPG OUT -P/U=200K,S/0=150K,ROT=165K LOSS RATE- 75 BPH, PUMP 60 BBL 40 PPB LCM PILL. AST= HRS,ART=2.12,ADT=2.12 HRS TOTAL BIT HRS=21.51,TOTAL JAR HRS= 43.1 SPR'S: 15,848'MD(8,769'TVD)-TIME=19:30, MW=8.6 PPG #1 MP-20/30 SPM=500/610 PSI #2 MP-20/30 SPM=440/580 PSI 17:30 - 21:00 3.50 DRILL P PROD1 ROTATE&RECIPROCATE WHILE CIRCULATING -260 GPM,1800 PSI,120 RPM OFF,6K TQ -P/U=200K,S/O=150K,ROT=165K PUMPED 95 BBL-40 PPB LCM PILL -MONITOR WELL-WELL STATIC 21:00 - 00:00 3.00 DRILL P PROD1 POOH ON ELEVATORS FROM 15,712'MD TO 13,531'MD -MONITORING HOLE FILL ON TRIP TANK -30K OVERPULL AT 15,120',14,978' -40K OVERPULL AT 14,230' 12/22/2012 00:00 - 01:00 1.00 DRILL P PROD1 POOH ON ELEVATORS FROM 13,531'TO MD TO 13,150' -MONITORING HOLE FILL VIA TRIP TANK 01:00 - 08:30 7.50 DRILL P PROD1 LOGGING MAD PASS -260 GPM ,400 FPH M FROM 13,150'MD TO 11,950'MD -65 BPH LOSS RATE WHILE LOGGING -PU WT-195K,SOW-164K, MONITOR THE WELL AT THE 7"SHOE-WELL STATIC 08:30 - 12:00 3.50 DRILL P PROD1 RIH ON ELEVATORS FOR SHORT TRIP FROM 11,825'TO 15,850' -MONITOR WELL VIA PITS#1 AND#2 12:00 - 15:30 3.50 DRILL P PROD1 ROTATE AND RECIPROCATE PIPE WHILE CIRCULATING HOLE CLEAN -260 GPM ,1780 PSI,150 RPM -30-40 BPH LOSS RATE DURING CIRCULATION 15:30 - 19:00 3.50 DRILL P PROD1 POOH ON ELEVATORS F/15,850'MD TO 11,920'MD -MONITOR HOLE FILL ON TRIP TANK -PU WT-200K,SOW-150K, -MONITOR THE WELL PRIOR TO SHIFTING THE WELL COMMANDER -40-50 BPH STATIC LOSS RATE SHORT TRIP SHOWED NO TIGHT SPOTS ON THE WAY IN OR OVER PULLS ON THE WAY OUT. Printed 1/7/2013 1:26:41 PM �' f `North America -ALASKA- BP 0 of 30 Operation Summary Report " ` 4 ;,40A4° � Common Well Name Y-19 AFE No Event Type: RE-ENTER-ONSHORE(RON) Start Date:8/4/2012 End Date: 12/28/2012 X3-011 M2:DRILL(10,490,000.00) Project: Prudhoe Bay Site: PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:9/4/1988 12:00:00AM Rig Release:8/7/2012 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 19:00 - 19:30 0.50 DRILL P PROD1 DROP 1.76"BALL TO SHIFT THE WELL COMMANDER CIRCULATION SUB OPEN -PUMP BALL AT84 GPM WITH 400 PSI,BALL ON SEAT SHIFTED OPEN WITH 2340 PSI, PRESSURE DROP TO 50 PSI TO CONFIRM TOOL OPENING 19:30 - 21:30 2.00 DRILL P PROD1 ROTATE&RECIPROCATE PIPE WHILE CBU X 2 -150 RPM,475 GPM,1050 PSI , -PUW-195K,SOW-157K, ROT-172K,. -LOSING 40 BPH WHILE CIRCULATING 21:30 - 22:00 0.50 DRILL P PROD1 DROP 1.76"BALL TO SHIFT THE WELL COMMANDER CIRCULATION SUB CLOSED -OBSERVE SHIFT WITH 2395 PSI , 22:00 - 00:00 2.00 DRILL P PROD1 PUMP 20 BBL 9.9 PPG DRY JOB, -POOH ON ELEVATORS FROM 11,920'MD TO 6,886'MD -HOLE FILL MONITORED VIA THE TRIP TANK - PU WT-126K,SOW-119K 24 HOUR LOSSES 580 BBLS 12/23/2012 00:00 - 03:00 3.00 DRILL P PROD1 -POOH ON ELEVATORS FROM 6,886'MD TO 234' -HOLE FILL MONITORED VIA THE TRIP TANK -LOSING AVG 20 BPH DURING TRIP OUT -MONITOR WELL,STATIC LOSS RATE AT 15-20 BPH PJSM FOR UNLOADING THE SOURCE WITH RIG CREW AND SLB MWD REPS -UNLOAD SOURCE TO HOLDING PLACE 03:00 - 03:30 0.50 DRILL P PROD1 PJSM FOR UNLOADING THE SOURCE WITH RIG CREW AND SLB MWD REPS • -UNLOAD SOURCE TO HOLDING PLACE 03:30 - 06:00 2.50 DRILL P PROD1 CONTINUE LAYING DOWN 6-1/8"ROTARY STEERABLE PRODUCTION BHA AS DIRECTED BY SLB DIRECTIONAL DRILLER -CLEAN AND CLEAR THE RIG FLOOR BIT GRADE: 0-1-CT-C-X-I-NO-TD -PREP FOR 4-1/2"LINER RUN Printed 1/7/2013 1:26:41 PM North America -ALASKA- BP Page 1 of 7 Operation Summary Report Common Well Name:Y-19 AFE No Event Type: COM-ONSHORE(CON) Start Date: 12/23/2012 End Date: 12/28/2012 X3-011M2:DRILL(4,097,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:9/4/1988 12:00:OOAM Rig Release:8/7/2012 Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 12/23/2012 06:00 - 11:00 5.00 CASING P RUNPRD MEMORY LOG DATA DOWN LOAD AND SENT TO TOWN FOR FINAL COMPLETION DECISIONS 11:00 - 22:00 11.00 CASING P RUNPRD RUN 4-1/2"PRODUCTION LINER ASSEMBLY TO 4,002'MD -P/U 3-1/2" FLOAT SHOE, FLOAT COLLAR,9.2 LB-FT TCII PUP'S,SLOTTED LINER JOINT APPLY JET LUBE SEAL GUARD THREAD COMPOUND,TORQUE TURN 3-1/2" CONNECTIONS TO OPTIMUM TORQUE OF 2,300 FT-LBS -CONTINUE TO P/U 3-1/2"SWELL PACKER TO 4-1/2"HYDRILL 521 XO. -P/U 4-1/2", 12.6 LB-FT HYDRILL 521 LINER, APPLY JET LUBE SEAL GUARD.TORQUE TURN 4-1/2"TO OPTIMUM TORQUE OF 4,700 FT-LB. -CONTINUE RIH WITH 4-1/2"LINER PER PROGRAM -MW IN AND OUT 8.6-PPG -MONITORING DISPACEMENT VIA PIT#3, FILLING EVERY JOINT 18-20 BBL PER HR LOSS RATE WHILE RIH. 122:00 - 00:00 2.00 CASING P RUNPRD :PJSM FOR RUNNING INNER 2-7/8"STRING -ENSURE CANFIELD BUSHING IS READY FOR WELL CONTROL RIG UP 2-7/8"FOX PIPE RUNNING EQUIPMENT -PU AND RIH WITH BOTTOM CUP TOOL ASSY -RIH WITH 2-7/8"FOX PIPE,TORQUED TO 1,800 FT/LB 24 HR LOSSES 454 BBLS 12/24/2012 00:00 - 05:00 5.00 CASING P RUNPRD PJSM FOR RUNNING INNER 2-7/8"STRING -ENSURE CANFIELD BUSHING IS READY FOR WELL CONTROL -RIH WITH 2-7/8"FOX PIPE,TORQUED TO 1,800 FT/LB 05:00 - 06:00 1.00 CASING P RUNPRD PU/MU LINER HANGER AND LINER TOP PACKER -MIX AND POUR PAL MIX -RD CASING RUNNING EQUIPMENT -C/O PS21 ROTARY SLIPS LOSS RATE-20 BPH WHILE FILLING OVER THE TOP 06:00 - 07:00 1.00 CASING P RUNPRD CIRCULATE 1.5 TIMES LINER VOLUME, -170 GPM,325 PSI,PUW-89K,SOW-98K 07:00 - 12:30 5.50 CASING P RUNPRD TIH WITH 4-1/2"HYDRIL LINER AND INNER STRING ON 4"XT-39 DP F/4,045'MD TO 11,927'MD -ESTABLISH CIRCULATION EVERY 2000' -MONITORING DISPLACEMENT VIA PIT 3-6 -PUW-166K,SOW-138K 12:30 - 14:30 2.00 CASING P RUNPRD CIRCULATE 1.5 TIMES LINER VOLUME, -170 GPM ,710 PSI , PUW-182K,SOW-150K -LOSSES AT 40 BPH Printed 1/7/2013 1:18:48PM North America-ALASKA- BP Page 2 of 7 rMSINF, Operation Summary Report Common Well Name:Y-19 AFE No Event Type: COM-ONSHORE(CON) Start Date: 12/23/2012 End Date: 12/28/2012 X3-011M2:DRILL(4,097,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.: DOYON 25 Spud Date/Time:9/4/1988 12:00:00AM Rig Release:8/7/2012 Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Y-19©80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 14:30 - 17:30 3.00 CASING P RUNPRD CONT TIH WITH 4-1/2"HYDRIL LINER AND INNER STRING ON 4"XT-39 DP F/11,927' MD TO 15,826' -ESTABLISH CIRCULATION EVERY 2,000' -SPACE OUT WITH SINGLES AND MAKE UP CEMENT HEAD RIH AND TAG ON DEPTH @ 15,850'MD. PUW-224K,SOW-135K 17:30 - 21:00 3.50 CASING P RUNPRD PU STRING TO 15,548'MD, -CIRCULATE 180 BBLS OF 8.6 PPG POWER PRO -127-156 GPM,800-900 PSI -SLB CEMENTERS RIGGING UP PUMP 175 BBL SPACER:FROM RIG PITS 100 BBLS OF 8.6 BRINE 25 BBLS OF 7.0 PPG LVT BASE OIL 50 BBLS OF 8.6 RHELIANT PLUS MINERAL OIL FOLLOWED SPACER WITH 260 BBLS OF 8.6 PPG RHELIANT PLUS OIL BASE MUD FROM VAC TRUCK. -86-112 GPM,650-925 PSI 21:00 - 21:30 0.50 CASING -P RUNPRD SLB CEMENT TRUCK RIGGED UP -TEST LINES TO 250 PSI LOW AND 4750 FOR -5 MINUTES TEST PASSING FOR LEAK TIGHT TEST CRITERIA. PRESSURE DECLINE WAS 150 PSI FROM PERMANENT DEVIATION TO CRT-AK-10-45 -DROP TWO STAGE DART 21:30 - 22:30 1.00 CASING P - RUNPRD LINE UP SLB CEMENTERS TO DISPLACE THE TWO STAGE DART WITH RHELIANT OIL BASE MUD -114 GPM ,992 PSI , BUMP DART WITH 114 4 BBLS PUMPED(5 BBLS EARLIER THAN CALC) -PRESSURE UP TO 1500 PSI TO RELEASE INNER DART- -CONT PUMPING TO LAND INNER DART WITH 118.5BBLS -2 BPM WITH 788 PSI, PRESSURE UP TO 2300 PSI TO SET BAKER FLEX LOCK HANGER. 22:30 - 23:00 0.50 CASING P RUNPRD SLACK OFF 25K OFF OF STRING WEIGHT TO VERIFY HANGER SET. PRESSURED UP TO 3000 PSI TO RELEASE FROM HANGER. -PU 3.5'TO CLOSE PPIT,VERIFY WITH 1000 PSI PRESSURE TEST FOR 5 MIN. -PU 10'TO LOCATE EXTERNAL CASING PACKER INDICATOR SUB,SLACKED OFF BACK TO NEUTRAL WT 23:00 - 23:30 0.50 CASING P RUNPRD USED SLB CEMENT PUMP TO PRESSURE UP TO INFLATE ECP AS DIRECTED BY BAKER REP. -ECP INFLATED WITH 2078 PSI , BLED PRESSURE BACK TO 1670 PSI. HELD 1670 FOR 10 MIN.VERIFIED ECP INFLATION WITH STRAP ON RETURNED FLUID BACK AFTER PRESSURE UP( .14 BBL) Printed 1/7/2013 1:18:48PM • North America -ALASKA- BP • "` Page 3 of 7 Operation Summary Report Common Well Name:Y-19 AFE No Event Type: COM-ONSHORE(CON) Start Date: 12/23/2012 End Date: 12/28/2012 X3-011 M2:DRILL(4,097,000 00) Project:Prudhoe Bay Site: PB Y Pad Rig Name/No.: DOYON 25 Spud Date/Time:9/4/1988 12:00:OOAM Rig Release: 8/7/2012 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 23:30 - 00:00 0.50 CASING P RUNPRD PU 23'TO LOCATE COLLET INDICATING SUB FOR OPENING THE HMCV. -SLACK OFF TO NEUTRAL WT AT 200K. -PRESSURED UP TO 2055 PSI TO OPEN HYDRO MECHANICAL CEMENTING VALVE OR (HMCV) —24 HR LOSSES-437 BBLS 12/25/2012 00:00 - 02:00 2.00 CASING P RUNPRD PUMP 25 BBLS LVT BASE OIL AND 50 BBLS DEEP CLEAN PILL THROUGH THE OPEN HMCV -DISPLACE WITH POWER PRO AND CIRC SURFACE TO SURFACE -6 BPM,1824 PSI ICP,1020 PSI FCP DISCARDED SPACERS,SAVED THE OIL BASE MUD FOR RE-USE -LOST 58 BBLS OF RHELIANT PLUS MINERAL BASE OIL TO FORMATION WHILE CIRCULATING. 02:00 - 02:30 0.50 CEMT P RUNPRD CEMENT 4-V2"BONZAI LINER AS FOLLOWS: -HOLD PJSM WITH RIG CREW,SLB CEMENT CREW,BAKER,AND BPXA CEMENT PUMPING: -PUMP 23 BBLS 12.0 PPG MUD PUSH AT 6 BPM,820 PSI -PUMP 25 BBLS,15.8 PPG CLASS G TAIL CEMENT AT 6 BPM,820 PSI ICP,550 PSI FCP YIELD 1.17(120 SXS) -USE SLB CEMENTERS TO DISPLACE WITH 8.6 PPG POWER-PRO MUD AT 6 BPM -25 BBLS AWAY:CAUGHT CEMENT, PRESSURE INCREASED TO 740 PSI -6 BPM,1500 PSI FCP -PUMP TOTAL OF 117.5 BBLS 8.6 PPG POWER-PRO MUD, LEAVING 1 BBL OF CEMENT ON TOP OF HMCV -CEMENT IN PLACE AT 02:30 HRS -CEMENT BATCHED AT 00:30 HRS -GOOD LIFT PRESSURE THROUGHOUT JOB 02:30 - 03:30 1.00 CEMT P RUNPRD P/U 6'TO CLOSE THE HCMV WITH 15 K OVER PULL IN THE INDICATOR SUB. UNABLE TO CLOSE HMCV UNTIL 3RD CYCLE. -SLACK OFF 6' -LINE UP TO THE BLEEDER AND DO FLOW TEST-CONFIRMED NO FLOW -USING SLB CMT PUMP, PRESSURE UP TO 3300 PSI TO VERIFY VALVE IS CLOSED -HOLD FOR 5 MIN, BLEED PRESSURE 1 -SLACK OFF 27K AND SET LINER TOP PACKER -CONT SLACK OFF 35K AND ROTATE TO VERIFY PACKER SETTING Printed 1/7/2013 1:18:48PM • North America -ALASKA- BP Page 4 of 7 Operation Summary Report • Common Well Name:Y-19 'AFE No Event Type: COM-ONSHORE(CON) Start Date: 12/23/2012 End Date: 12/28/2012 X3-011 M2:DRILL(4,097,000.00) Project:Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:9/4/1988 12:00:00AM Rig Release: 8/7/2012 Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 03:30 - 04:00 0.50 CEMT P RUNPRD P/U 20',CLOSE THE ANNULAR AND REVERSE 5 BBLS TO CLEAR CEMENT UP ABOVE THE RUPTURE DISK PRIOR TO FULL CIRCULATION -BLEED OFF PRESSURE AND OPEN ANNULAR -LINE UP WITH SLB CMT PUMP DOWN THE --DRILL STRING.PRESSURE UP TO 4600 PSI TO BURST DRAIN DISK. 04:00 - 05:00 1.00 CEMT P RUNPRD CIRCULATE OUT CEMENT -8 BPM,1800-2400 PSI -9 BBLS CEMENT RETURNED TO SURFACE 05:00 - 06:30 1.50 CEMT P RUNPRD PRESSURE TEST ZXP LINER TOP PACKER -CLOSE ANNULAR AND PUMP DOWN KILL LINE -TEST ZXP LTP TO 250 LOW/3500 HIGH FOR 5/30 MIN -BLEED PRESSURE AND OPEN ANNULAR 06:30 - 08:30 2.00 CEMT P RUNPRD PREP PITS FOR SEAWATER DISPLACEMENT -R/D CEMENT LINE, UD CEMENT HEAD 08:30 - 11:00 2.50 CEMT _ P RUNPRD DISPLACE WELL TO 8.5 PPG SEAWATER -335 GPM.2700 PSI -- MONITOR WELL FOR 30 MIN-9 BPH LOSS RATE SPR'S: 12,637'MD(8,842'TVD)-TIME=10:00, MW=8.5 PPG #1 MP-20/30 SPM=250/370 PSI #2 MP-20/30 SPM=200/340 PSI 11:00 - 16:30 5.50 CEMT P RUNPRD POOH UD DRILLPIPE DOUBLES TO PIPESHED FROM 12,581'TO 6,180'MD 16:30 - 21:30 5.00 CEMT P RUNPRD POOH UD DRILLPIPE SINGLES TO PIPESHED FROM 6,180'TO 860'MD 21:30 - 22:00 0.50 CEMT P RUNPRD CHANGE OUT SLIP INSERTS WHILE MONITORING WELL _ -12 BPH LOSS RATE 22:00 - 22:30 0.50 CEMT P RUNPRD UD LINER RUNNING TOOL 22:30 - 23:00 0.50 CEMT P RUNPRD R/U TO UD 2-7/8"FOX INNER STRING 23:00 - 00:00 1.00 CEMT P RUNPRD UD 2-7/8"FOX PIPE TO PIPESHED FROM 860' TO 470'MD 24 HR LOSSES-150 BBLS POWER-PRO,150 BBLS SEAWATER 12/26/2012 00:00 - 01:00 1.00 CEMT P RUNPRD CONT UD 2-7/8"FOX PIPE TO PIPESHED FROM 470'MD TO SURFACE -L/D BAKER BONZAI CUP INFLATION TOOL -MINOR DAMAGE OBSERVED ON UPPER PACKER CUPS 01:00 - 02:30 1.50 CEMT P RUNPRD CLEAN AND CLEAR RIG FLOOR -SERVICE AND INSPECT TOPDRIVE -SEND OUT 2-7/8"HANDLING EQUIPMENT -CIO SLIP INSERTS 02:30 - 03:30 1.00 CEMT P RUNPRD M/U STACK WASHER AND JET STACK 03:30 - 05:00 1.50 CEMT P RUNPRD RIH WITH 4"DRILLPIPE FROM DERRICK TO 4080'MD 05:00 - 05:30 0.50 CEMT P RUNPRD P/U CEMENT HEAD, REMOVE CROSSOVERS AND PUP JOINTS -UD CEMENT HEAD Printed 1/7/2013 1:18:48PM 40 North America ALASKA BP41110 Page 5 of 7 Operation Summary Report Common Well Name:Y-19 AFE No Event Type:COM-ONSHORE(CON) Start Date: 12/23/2012 End Date: 12/28/2012 X3-011 M2:DRILL(4,097,000.00) Project: Prudhoe Bay Site: PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:9/4/1988 12:00:OOAM Rig Release:8/7/2012 Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 05:30 - 09:30 4.00 CEMT P RUNPRD POOH L/D DRILLPIPE SINGLES TO PIPESHED FROM 4080'TO SURFACE 09:30 - 12:00 2.50 RUNCOM P RUNCMP R/U TO RUN 4-1/2"13CR VAMTOP COMPLETION -MAKE TUBING HANGER DUMMY RUN 12:00 - 21:00 9.00 RUNCOM P RUNCMP RUN 4.5"12.6 LB/FT,13CR-85,VAMTOP COMPLETION TO 5,827'MD -INDEXING WLEG,X-NIPPLE,X-NIPPLE, HES TNT PACKER,X-NIPPLE,GLM'S#1-4 -TORQUE TURN VAMTOP CONNECTIONS TO 4,440 FT-LBS -LOSSES AT 13 BPH 21:00 - 21:30 0.50 RUNCOM P RUNCMP P/U SLB CONTROL LINE EQUIPMENT TO RIG FLOOR 21:30 - 23:30 2.00 RUNCOM N RREP ;5,827.0 RUNCMP TROUBLESHOOT PIPESHED CONVEYOR SYSTEM -CHANGE OUT DRIVE MOTOR ON PIPE CONVEYOR SYSTEM 23:30 - 00:00 0.50 RUNCOM P RUNCMP CONTINUE TO RUN 4.5"12.6 LB/FT,13CR-85, VAMTOP COMPLETION FROM 5 827'TO 6,159' MD .24 HR LOSSES-267 BBLS SEAWATER 12/27/2012 00:00 - 03:30 3.50 RUNCOM P RUNCMP RUN 4.5"12.6 LB/FT,13CR-85,VAMTOP • COMPLETION FROM 6,159'TO 8,978'MD -GLM#5 -TORQUE TURN VAMTOP CONNECTIONS TO 4,440 FT-LBS 03:30RUNCOM P 08:00 4.50 RUNCMP M/U SLB-SFIV-II WITH DUAL CONTROL LINES -CLOSE SFIV,TEST 250 PSI LOW CHART 5 MIN,TEST 5,000 PSI HIGH CHART 10 MIN -STATIC LOSS RATE 13 BPH 08:00 - 13:00 5.00 RUNCOM P RUNCMP RUN 4.5"12.6 LB/FT,13CR-85 VAMTOP COMPLETION FROM 8,978'TO 11,822'MD -X-NIPPLE -INSTALL CROSS COLLAR CLAMP ON DUAL CONTROL LINES -UP WT 159K,DN WT 127K 13:00 - 15:30 2.50 RUNCOM P RUNCMP SPACE OUT TO 11,819'MD -P/U LANDING JOINT AND TBG HANGER -TERMINATE CONTROL LINES IN TBG HANGER -TEST CONTROL LINES TO 5,000 PSI -LAND TBG -69 TOTAL CONTROL LINE CLAMPS RAN. 1 OFF SET CLAMP ABOVE SFIV,AND 68 CANON CLAMPS. 15:30 - 17:00 1.50 RUNCOM P RUNCMP FUNCTION SFIV VALVE CLOSED -PRESSURE TEST TO 1,000 PSI, BLEED DOWN TO 500 PSI -FUNCTION OPEN SFIV VALVE, RELEASE PRESSURE UP BACKSIDE Printed 1/7/2013 1:18:48PM `North America -ALASKA BP S Pa.e 6 of 7 Operation Summary Report Common Well Name:Y-19 AFE No Event Type:COM-ONSHORE(CON) Start Date: 12/23/2012 End Date: 12/28/2012 X3-011 M2:DRILL(4,097,000.00) Project: Prudhoe Bay Site:PB Y Pad Rig Name/No.:DOYON 25 Spud Date/Time:9/4/1988 12.00:00AM Rig Release:8/7/2012 Rig Contractor:DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description of Operations (hr) (ft) 17:00 - 20:30 —3 50 RUNCOM P RUNCMP RILDS ON TBG HANGER,CAMERON PRESENT -REVERSE 186 BBLS,130 DEG 8.5 PPG SEAWATER @ 4BPM,620 PSI, -REVERSE 152 BBLS,130 DEG 8.5 PPG SEAWATER W/CORROSION INHIBITOR @ 4 BPM,620 PSI —REVERSE 166 BBLS,130 DEG 8.5 PPG SEAWATER @ 4BPM,620 PSI PUMP 5 BBLS DN TBG 20:30 - 22:30 2.00 RUNCOM P RUNCMP DROP 1-7/8"BALL AND ROD WITH ROLLERS -TEST TBG 250 PSI LOW CHART FOR 5 MIN, 4000 PSI HIGH TO SET PACKER CHART FOR 30 MIN =BLEED TBG TO 2500 PSI,TEST IA 250 PSI LOW CHART 5 MIN,4000 PSI HIGH CHART 30 MIN WTL APPROVED TO PROCEED • OPERATIONS 22:30 - 00:00 1.50 RUNCOM P RUNCMP BLEED TBG TO 0 PSI,SHEAR DCK VALVE AT 1200 PSI -PUMP BOTH WAYS AT 2 BPM TO CONFIRM SHEAR VALVE OPEN L/D LANDING JOINT. BLOW DOWN -DRY ROD IN TWC 24 HR LOSSES-263 BBLS SEAWATER 12/28/2012 00:00 - 01:30 1.50 RUNCOM P RUNCMP TEST TWC F/ABOVE 250 LOW/3500 HIGH, FOR 5/5 MIN,TEST GOOD -TEST TWC F/BELOW 250 LOW/3500 HIGH, FOR 5/30 MIN,TEST GOOD -VERIFY 0 PSI -R/D HEAD PIN AND LANDING JOINT,L/D SAME,B/D LINES 01:30 - 02.00 0.50 BOPSUR P RUNCMP R/D CONTROL LINE SPOOLING UNIT,R/D HANDLING TOOLS, P/U DRY HOLE TREE 02:00 - 04:00 2.00 BOPSUR P RUNCMP PULL PS-21 SLIPS,WASH UP FLOW LINE AND STRIP-O-MATIC -DRAIN STACK,R/D FLOW RISER,R/D FLOW LINE,RETRACT FLOW BOX -DISCONNECT CHOKE LINE,KILL LINE,AND KELLY HOSE 04:00 - 05:30 1.50 BOPSUR P RUNCMP N/D BOP AND STOW,WD HIGH PRESSURE RISER AND SPACER SPOOL 05:30 - 07:30 2.00 WHSUR P RUNCMP CLEAN TBG HANGER,TERMINATE CONTROL LINES,N/U ADAPTER FLANGE AND DRY HOLE TREE 07:30 - 09:00 1.50 WHSUR P RUNCMP TEST CONTROL LINES TO 1000 PSI,TEST GOOD -TEST ADAPTER FLANGE TO 250 LOW/5000 HIGH,FOR 5/10 MIN,TEST GOOD 09:00 - 10:30 1.50 WHSUR P RUNCMP FILL DRY HOLE TREE AND TEST SAME 250 LOW/5000 HIGH,FOR 5/10 MIN,TEST GOOD 10:30 - 12:00 1.50 WHSUR P RUNCMP P/U LUBRICATOR,TEST 250 LOW/3500 HIGH, FOR 5/5 MIN,TEST GOOD -PULL TWC 12:00 - 16:00 4.00 WHSUR P RUNCMP R/U LINE TO TREE AND TEST TO 3500 PSI, REVERSE 152 BBLS 80 DEG DIESEL @ 1.5 BPM,760 PSI 16:00 - 18:00 2.00 RIGD P RUNCMP SCOPE DERRICK DOWN WHILE ALLOWING DIESEL TO U-TUBE Printed 1/7/2013 1:18:48PM North America -ALASKA- BP Page 7 of 7 Operation Summary Report Common Well Name:Y-19 AFE No Event Type: COM-ONSHORE(CON) Start Date: 12/23/2012 End Date: 12/28/2012 X3-011 M2:DRILL(4,097,000.00) Project: Prudhoe Bay Site:PB Y Pad Rig Name/No.: DOYON 25 Spud Date/Time:9/4/1988 12:00:00AM Rig Release:8/7/2012 Rig Contractor: DOYON DRILLING INC. UWI: Active Datum:Y-19 @80.4ft(above Mean Sea Level) Date From-To Hrs Task Code NPT NPT Depth Phase Description.of Operations (hr) (ft) 18:00 - 19:00 1.00 WHSUR P RUNCMP R/U LUBRICATOR,TEST 250 LOW/3500 HIGH, 5 MIN EACH -INSTALL BPV 19:00 - 21:00 2.00 WHSUR P RUNCMP UD LUBRICATOR,TEST BPV F/BELOW 250 LOW/3500 HIGH, FOR 5/30 MIN 21:00 - 23:00 2.00 WHSUR P RUNCMP R/U TEST INNER VALVE ON OA TO 250 PSI LOW/2000 PSI HIGH -R/D TEST PUMP AND BLOW DOWN -STAGE PARTS TRAILER -DISCONNECT CSG SHED 23:00 - 00:00 1.00 WHSUR P RUNCMP INSTALL VR PLUGS IN IA VALVES ON BOTH / SIDES OF WELLHEAD AND TEST -R/D OUTSIDE VALVE ON OA -RIG RELEASED @ 24:00 Printed 1/7/2013 1:18:48PM 88 22 2"222000 Iq If)V,, 4dM2 t7 IsNN1-x- .-00 pWO 00000 00pNppw O apW O 00000 W 00101010 010101010 mamma 10101N01010 (02202 t8NO2t0 NmN t0 8(08 t0 t0 88f0wb t08t8N08iD p J 28222 22222' 22A22 22('722 22222 (722172 22222 22222 221722 0 2 2102 wmw0w mwmw0 ww www ww W ww 44444 O�p�pwyp N(Om aDG www ww N W w W Nwww SlaDwww OO<YY 8YOY O 0'4444 OOOQ O O1(OypQ O��OyyO 44141�ypOQQQ OO1fO��O aOV V 0<O0 a 4E88888 0000Ny 0� Oy. 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E «««««« 3 f { 2k!/ co` --�/ 2®5! g5! } 2 % £ \m F §l ' . ! ` ��` \ D, f E :1:130 \`)) `\\ (27"I; / 2 \ \\ W a a0 li` /\ -\z`ƒ) -mm - '.7.8 /\ (( k( E 2`(( (\( /',T, - 0 2 � $ 0 E \ {{ { ; J= 0 McMains, Stephen E (DOA) From: Lastufka, Joseph N [Joseph.Lastufka@bp.com] Sent: Wednesday, March 27, 2013 9:24 AM To: McMains, Stephen E (DOA) Subject: PBU Y-19A/PTD#212-020 Hi Steve, Please reference the following well: Well Name: PBU Y-19A Permit#: 212-020 API #: 50-029-21857-01-00 Date of Test: 3/24/2013 Type of Test: IPT (Initial Production Test) Choke Size: 96 Choke Unit: Deg Production Method: Gas Lifted Duration (Hours Tested): 12 Top Reference (Top Perf MD): 13005' Bottom Reference (Bottom Perf MD): 15628' Tubing Flowing (Pressure): 700 Casing Pressure: 1280 Total Test(Rate f/0, W, G): 735 /2/948 24-Hour Rate (0, W, G): 1470 /4/ 1896 Gravity (Oil, API): 23.9 GOR (Gas-Oil Ratio): 1293 This well began Production on Method of Operations on this date: 3/21/2013 ' SD AAS MAR 2 7 2013 „de/P1 P5a_ V- d14 z t zO zuo Regg,,James B (DOA) From: Madarapu, Rahul Raj [Rahul.Madarapu@bp.com] Sent: Monday, December 10, 2012 10:59 AM K of ID` 11-'To: Regg, James B (DOA) I Cc: Schwartz, Guy L (DOA); DOA AOGCC Prudhoe Bay Subject: RE: Approval for re-scheduling BOP test Attachments: Y-19 71N RAM TEST CHART.pdf James, — That is correct, we are not in a position to test full BOPE until we land the liner and cement. Please find attached, the test chart for 7"rams. Thanks for your consideration in such short notice. Regards, Rahul Madarapu Drilling Engineer +1 (907)564 4147(Direct) +1 (907)748 0997(Mobile) GWGlobal Wells Organization From: Regg, James B (DOA) [mailto:jim.regg(&alaska.gov] Sent: Monday, December 10, 2012 10:48 AM To: Madarapu, Rahul Raj Cc: Schwartz, Guy L (DOA); DOA AOGCC Prudhoe Bay Subject: RE: Approval for re-scheduling BOP test You commenced running the liner at 430am per DDR#19 (0600 Update); rig made decision to test 7" rams only prior to running liner at 1130pm last night. So, what you are really telling us is that you are not in a position to test full BOPE until you land the liner(and cement?), correct? DDR's you provided do indicate hole problems, so we will grant you a one-time extension to 14-day BOPE testing for a non-well control reason. Future drilling must take advantage of testing opportunities so you can remain in compliance with AOGCC requirements and expectations that have been clearly communicated to the oil industry regarding 14-day BOPE testing requirements. BOP test report you submit after liner is run and cemented must include statement that test extension was granted due to hole conditions. Please provide copy of test chart for 7" liner rams. Jim Regg AOGCC 333 W.7th Ave,Suite 100 Anchorage,AK 99501 907-793-1236 1 From: Madarapu, Rahul Raj [mailto:Rahul.Madarapu@bp.com] Sent: Monday, December 10, 2012 9:59 AM To: Regg, James B (DOA) VapYC Cc: Schwartz, Guy L (DOA); DOA AOGCC Prudhoe Bay �2 Subject: RE: Approval for re-scheduling BOP test or,14A �Z\� , tic> James, (;► (� /.7 Thanks for your prompt response. Please find attached, the daily drilling reports for the last week. The original plan was to test BOP before running the liner. We commenced drilling the second part of the intermediate section early morning on the 6th of December in anticipation of being on plan. However, after drilling the overburden shales we experienced sloughing and deteriorating hole conditions over the weekend and hence we — would prefer to run and cement liner before testing the BOP. Once again we apologize for the short notice in anticipation of your approval. Regards, Rahul Madarapu Drilling Engineer +1 (907)564 4147(Direct) +1 (907)748 0997(Mobile) Global Wells Gv v Organization From: Regg, James B (DOA) [mailto:jim.re•g@alaska.gov] Sent: Monday, December 10, 2012 9:49 AM To: Madarapu, Rahul Raj Cc: Schwartz, Guy L (DOA); DOA AOGCC Prudhoe Bay Subject: RE: Approval for re-scheduling BOP test AOGCC does not grant extensions for testing BOPE when on 14-day test interval unless there is ongoing well control. Please send daily drilling reports for past week. You need to take advantage of testing opportunities as you approach 14th day. You have also not given a satisfactory answer to why the short notice. Jim Regg AOGCC 333 W.7th Ave,Suite 100 Anchorage,AK 99501 907-793-1236 From: Schwartz, Guy L(DOA) Sent: Monday, December 10, 2012 8:50 AM To: Regg, James B (DOA) Subject: FW: Approval for re-scheduling BOP test Importance: High We can discuss this... I think this should have been a two week BOP test. Guy Schwartz Senior Petroleum Engineer 2 AOGCC 793-1226 (office) 444-3433 (cell) From: Madarapu, Rahul Raj [mailto:Rahul.Madarapu@abp.com] Sent: Monday, December 10, 2012 7:48 AM To: Schwartz, Guy L (DOA) Subject: Approval for re-scheduling BOP test Importance: High Hello Guy, On Doyon 25 currently at Y-19A, the BOP test is originally due by mid-night today (Monday 12/10/2012). However, we had completed drilling the long intermediate hole section and are seeing some possible signs that — would risk the well if we do not run 7" liner as soon as possible. Hence, we are currently picking up liner to run in the hole and cement in expectation of performing the BOP test tomorrow afternoon instead if all goes as planned. By means of this email, we request your approval to permit us to run the liner and perform the BOP test tomorrow afternoon if everything goes as planned. We sincerely apologize for giving you this short notice. Regards, Rahul Madarapu Drilling Engineer +1 (907)564 4147(Direct) +1 (907)748 0997(Mobile) Global Wells G Organizatior: 3 — pM Z�ZCz /� 0 4gM �5MA i 1( n i4 1- 000 I 1 `� 441-1 .% -f------L-/ / ,. # T - - - -w ' � / /moi0001 ��� :: ; - � \ A / o 00,-- I �N. � \ 0. \AI ,-/, ' $ 0 I fro #.00ork v\ tii ' ,, i4/4 / 1, �,billoodiaddieotiompolop"mullo 118111 ��41.i 'v ' pis III11 � �) I7 � � it � 101 �� � !! gni 1III ��1 H1 I''''1 �� III I IIIIj�� ��� '�i _IIIhy.IIII� IIIkkolitilaglipitik , :� ,, . I u � ��H �Iill I�Itt ���N� �,•,.•,.� � *� �•� 1/4/01/110/4 / St it c't aSUS k •o • iii � � / 11 llit iii, //t til 0 ' # U%,. O\ �O‘1\ �0 1 Al- ,��s Iv , w • North America - ALASKA - BP Page 1 of 5 Daily Operations Report (RE-ENTER- ONSHC Operator: BP Event Type: RE-ENTER-ONSHORE Report: 19 Well/Wellbore No.: Y-19/01 Event Objective DRILL SIDETRACK A Date: 12/9/2012 Well Type: DEVELOPMENT Site: PB Y Pad Job Number: 1 Acct Proj No: X3-011 M2:DRI LL Contractor: DOYON DRILLING INC. Rig: DOYON 25 Current Well Status Depth MD: 11,961.00(ft) Casing Size: 9.625(in) AFE No.: X3-011M2:DRILL Rig Accept: 12:00:00AM 11/22/201 Est TVD: 8,819.41 (ft) Casing(MD): 3,051.00(ft) AFE Cost: 10,490,000.00 Rig Release: Progress: 0.00(ft) Next Casing Size: 7.000(in) Cost in: US Dollar Spud Date: 9/4/1988 Auth Depth: Next Casing(MD): 11,934.00(ft) Exchange Rate:1.00 WX Date: 11/29/2012 Hole Size: 8.500(in) Next Casing(TVD):8,819.00(ft) Daily Mud: 4,203.48 Ground Elevation: 49.74(ft) Elev Ref: Y-19 @80.39ft(above Mean Sea Level) Cum. Mud: 876,596.62 KB Elev: 80.39(ft) Daily Well: 242,253.91 Total Personnel: 52 Geologist: HEWITT/CHRISTENSEN Cum.Well: 5,419,244.35 Wellbore Max Angle: 67.84 Engineer: MADARAPU DOL: 16.58 Day WSL: HEFLEY DFS: 10.63 Night WSL: STAUDINGER Est Days: 37.00 Weather: TEMP-35°F, 10 MPH,WC-60°F Current Status: PRESSURE TESTING 7"RAMS. 24 Hr Summary: POOH FROM 11,961'MD,ENCOUNTER TIGHT HOLE AT 7,715'MD,BACKREAM OUT OF HOLE TO WINDOW,POOH TO )� SURFACE,UD DRILLING BHA#5,CHANGE UPPER VBR PIPE RAMS TO 7" RAMS AND TEST. < lee Q ;, ,ii' \V 24 Hr Forecast: RIG UP AND RUN 7"LINER ON 5"DP,CIRCULATE AND CONDITION MUD,CEMENT LINER. Update at 06:00: RIH WITH 7"LINER PER PROGRAM. ---- `;--;Wit, P?,,:, 4 jf- J ' Comments :NO ACCIDENTS-NO INCIDENTS-NO ENVIRONMENTAL INCIDENTS. t f- 0 HOUR BILLABLE DOYON RIG REPAIR NPT DAILY,131 TOTAL HOURS YTD;33-HRS NON-RIG REPAIR NPT TOTAL HOURS FOR Y-19A Cost and AFE Summary by AFE Event Type AGSP Planned Cum Cost Grouped AFE Cost Estimated Cum Cost Grouped Event Cost RE-ENTER-ONSHORE X3-011M2:DRII 10,490,000.00 14,587,000.00 5,419,244.50 5,419,244.33 COM-ONSHORE X3-011M2:DRII 4,097,000.00 14,587,000.00 0.00 5,419,244.33 Totals 14,587,000.00 14,587,000.00 5,419,244.50 5,419,244.33 HSE and Well Control Days Since Last DAFWC:No Last DAFWC Date All Free Days: Incident Details: Safety Moment Topic: Keywords: Comments: Last Csg Test Press: 3,500.00(psi) Number of Dropped Objects: 0 Last H2S Drill: 9/17/2012 Last BOP Pressure Test: 11/26/2012 Last Abandonment Drill: 11/24/2012 Last Trip Drill(D1): 12/9/2012 Next BOP Press Test: 12/10/2012 Last Accum Drill(D4): 9/14/2012 Last Safety Meeting: 12/9/2012 Last Diverter Drill(D3): 9/18/2012 Last Spill Drill: 12/3/2012 Last Environmental Incident: 8/16/2012 Safety Observation Cards 0 Regulatory Agency Insp: No Non-compliance Issued: No FIRE DRILL 12/9/2012 Kick Tolerance: 0.98 ppg Kick Volume: 88.6 LOT TVD: 3,027.59(ft) BHP: 1,938.2(psi)@3,027.59(ft) MAASSP: 223.9(psi) LOT EMW: 12.32(ppg) Test Pressure: 507.0(psi) No. Slow Pump Rates(Circ) Slow Pump Rates(Choke) _ Slow Pump Rates(Kill) Stroke Rate I Pressure(psi) Stroke Rate I Pressure(psi) Stroke Rate I Pressure(psi) No Pump Operations with Slow Pump Rates Perfor ance Measures Safety Observation Cards SOC JSEA First Aid Near Miss/HSE Opp. Today 4 Total 67 117 12/10/2012 4:53:59AM • North America -ALASKA- BP Pase 2 of 5 Daily Operations Report (RE-ENTER- ONSHC Operator: BP Event Type: RE-ENTER-ONSHORE Report: 19 Well/Wellbore No.: Y-19/01 Event Objective DRILL SIDETRACK A Date: 12/9/2012 Well Type: DEVELOPMENT Site: PB Y Pad Job Number: 1 Acct Proj No: X3-011M2:DRI LL Contractor: DOYON DRILLING INC. Rig: DOYON 25 Operational Parameters ROP Daily: 0.00(fUhr)Rotating Weight: Daily Bit Hrs 0.00(hr) Pump Status-Drilling and Riser ROP Cum: 284.08(fUhr)Pick Up Wt: Daily Sliding Hrs 0.00(hr) No. Operat Efficiency SPM Liner Cric. WOB(min): Slack Off Wt: Cum Bit Hrs 7.35(hr) ion (%) (spm) Size Rate WOB(max): Circ Rate Riser: 0.00(gpm) Type (in) (gpm) Min RPM: 120(rpm)Circ Rate Hole: 0.00(gpm) Ann.Vel.Riser: RPM DH: 120(rpm) Ann.Vel.DC1: 378.00(ft/min) Torque on Bottom Circ On Bottom: 1,760(psi) Ann.Vel.DP: 290.00(ft/min) Torque off Bottom 10(ft-Ibf)Jar Hrs since Inspect: 52.71(hr) Bit Details Bit Run Re-Run Size Manuf. Model Type Serial# Nozzles(32nd") TFA Depth In(ft) Depth Out(ft) 5 Y 8-1/2 HYCALOG SKH616M-C Polycrystalline 227451 3X11,3X12 0.610 9,873.00 7D Diamond Bit Cum Prog(ft) RPM Min/Max I WOB Min/Max I Daily Hrs. I Hours Cum I ROP Cum I I I Condition I I 2,088.00 120/120 7.35 284.08 3 1 CTI C X I NO TD BHA BHA No.:5 TMD In: 9,873.00(ft) BHA Weight: Workstring Purpose: DRILLING TMD Out: 11,961.00(ft) Component Component Type Component Detail Jts Length Cum OD ID Blade OD Bend Connection P/B (ft) Length(ft) (in) (in) (in) Angle(°) Size(in) Type Bit Polycrystalline HYCALOG 1 1.00 1.00 8.500 4.500 REG P Diamond Bit SKH616M-C7D PDC BIT Mud Motor Steerable Motor POWERDRIVE 1 13.46 14.46 6.870 4.500 IF B RSS X6 Stabilizer Non Mag Smart STABILIZED 1 5.71 20.17 6.900 8.380 5.500 FH B Stabilizer RECEIVER Drill Collar Non Mag Flex Pony REAL-TIME FLEX 1 9.68 29.85 6.970 5.500 FH B Collar MWD MWD Tool PERISCOPE 675 1 19.45 49.30 6.880 5.500 FH B Stabilizer Non Mag Smart NM IN LINE 1 5.46 54.76 6.800 8.500 5.500 FH B Stabilizer STABILIZER MWD MWD Tool TELESCOPE 675 1 27.83 82.59 6.870 4.500 IF B MWD MWD Tool BAKER 1 34.52 117.11 6.500 4.500 IF B STARTRAK Drill Collar Non-Mag Drill Collar NM FLEX COLLAR 1 31.10 148.21 7.250 2.810 4.500 IF B Unknown Unknown TOMAX 1 13.00 161.21 6.770 3.000 4.500 IF B ANTI-STALL TOOL Drill Collar Non-Mag Drill Collar NM FLEX COLLAR 1 31.10 192.31 7.250 2.810 4.500 IF B Drill Collar Non-Mag Drill Collar NM FLEX COLLAR 1 31.06 223.37 7.280 2.810 4.500 IF B Sub Float Sub FLOAT SUB 1 3.23 226.60 7.260 2.810 4.500 IF B Port Circulating Sub WELL 1 12.49 239.09 6.950 3.500 4.500 IF B Collar/Diverte COMMANDER r Sub/Circulati ng Sub Heavy Heavy Weight Drill 5"HWDP 7 217.75 456.84 5.000 3.000 4.500 IF B Weight Pipe Jar Hydraulic Jar 6-1/2"DRILLING 1 32.38 489.22 6.540 2.750 4.500 IF B JAR(SMITH) Heavy Heavy Weight Drill 5"HWDP 13 403.86 893.08 5.000 3.000 4.500 IF B Weight Pipe Drill Pipe Drill Pipe 5"DP 1 893.08 5.000 4.280 4.500 IF B 12/10/2012 4:53:59AM • North America - ALASKA - BP Page 3 of 5 Daily Operations Report (RE-ENTER- ONSHC Operator: BP Event Type: RE-ENTER-ONSHORE Report: 19 Well/Wellbore No.: Y-19/01 Event Objective DRILL SIDETRACK A Date: 12/9/2012 Well Type: DEVELOPMENT Site: PB Y Pad Job Number: 1 Acct Proj No: X3-011 M2:DRI LL Contractor: DOYON DRILLING INC. Rig: DOYON 25 Drilling Fluid Type: LSND 10 sec gels: 9.000(Ibf/100ft2) Ca: ES: Time: 0:01 /PIT 10 min gels: 10.000(Ibf/100ft2) K+: Solids: 2.80(%) Depth: 11,966.00(ft) Fluid Loss: 3.7(cc/30min) CaCl2: Oil: 3.00(%) FL Temp.: (°F) HTHP Temp: 200.0(°F) NaCI: Water: 85.00(%) Density: 10.90(ppg) HTHP WL: 7.8(cc/30min) Cl-: 800(ppm) Oil/Water: Funnel Viso: 43.00(s/qt) Cake: 1.0(32nd") Sand: Daily Cuttings: ECD: MBT: 10.0(Ibm/bbl) HGS: 119.30(Ibm/bbl) Cum Cuttings: 0.0(bbl) PV: 12.00(cp) Lime: LGS: 42.40(Ibm/bbl) Lost Downhole: 20.0(bbl) YP: 26.000(lbf/100ft2) PM: 0.15(cc) Pf/Mf: 0.05/0.75(cc/cc) Lost Surface: pH: 9.50(cc) Operations Summary From-To Hrs Phase Task Activity Code NPT Operation Op.Depth(ft) (hr) 00:00- 03:00 3.00 INTI DRILL POH P POOH WITH DRILLING BHA ON ELEVATORS FROM 11,961' 7,905.0 TO 7,905'MD 03:00- 03:30 0.50 INTI DRILL POH P POOH AND L/D DOUBLES F/7,905'T/7,715'MD 7,715.0 ENCOUNTER TIGHT SPOT AT 7715'MD -40K OVERPULL -UNABLE TO WORK PAST 03:30- 04:00 0.50 INTI DRILL CIR P CBU WHILE ROTATING&RECIPROCATING F/7,715'T/ 7,715.0 7,660'MD -540 GPM,2,100 PSI -120 RPM, 10K TO -NO OBSTRUCTION OBSERVED 04:00- 15:00 11.00 INTI DRILL REAMBK P ATTEMPT TO POOH ON ELEVATORS F/7,660'MD 3,357.0 -30-40K OVERPULL BACKREAM OUT OF HOLE&STD BACK F/7,660'T/3,357' MD -540 GPM,2,050 PSI -120 RPM,5-10K TQ 15:00- 15:30 0.50 INTI DRILL POH P PUMP OUT OF HOLE F/3,357'T/2,978'MD 2,978.0 -540 GPM,1,620 PSI 15:30- 16:00 0.50 INTI DRILL CIR P CBU AT WINDOW 2,978.0 -540 GPM, 1,615 PSI MONITOR WELL-STATIC 16:00- 16:30 0.50 INTI DRILL RIH P RIH F/2,978'T/3,813'MD,DROP 2-3/8"OD DRILLPIPE DRIFT 3,813.0 -MONITOR DISP VIA TRIP TANK 16:30- 18:30 2.00 INTI DRILL POH P POOH F/3,831'T/893'MD 893.0 -MONITOR DISP VIA TRIP TANK 18:30- 20:30 2.00 INTI DRILL POH P POOH STANDING BACK 5"HWDP F/893'T/239'MD 239.0 20:30- 21:30 1.00 INTI DRILL BHPULD P L/D DRILLING BHA#5 F/239'MD AS PER SLB DD&BAKER 0.0 REP -BIT GRADE 3-1-CT-C-X-I-NO-TD 21:30- 22:30 1.00 INTI BOPSUR CLRF P CLEAN&CLEAR RIG FLOOR, R/D SURFACE EQUIP, 0.0 MOBILIZE BHA FROM RIG FLOOR,C/O ELEVATORS&P/U 7" TEST JOINT 22:30- 23:30 1.00 INTI BOPSUR WEAR P PULL WEAR RING,SET TEST PLUG,C/O UPPER VBR PIPE 0.0 RAMS TO 7"SOLID RAMS 23:30- 00:00 0.50 INTI BOPSUR TSTPRS P TEST 7"RAMS WITH 7"TEST JOINT TO 250 LOW/3500 0.0 HIGH FOR 5/5 MIN 12/10/2012 4:53:59AM North America - ALASKA - BP Page 4 of 5 Daily Operations Report (RE-ENTER- ONSHC Operator: BP Event Type: RE-ENTER-ONSHORE Report: 19 Well/Wellbore No.: Y-19/01 Event Objective DRILL SIDETRACK A Date: 12/9/2012 Well Type: DEVELOPMENT Site: PB Y Pad Job Number: 1 Acct Proj No: X3-011M2:DRI LL Contractor: DOYON DRILLING INC. Rig: DOYON 25 06:00 Update From-To Hrs Phase Task Activity Code NPT Operation Op.Depth(ft) (hr) 00:00- 01:00 1.00 INTI CASING RD P PULL TEST PLUG,SET WEAR RING,AND R/D TEST 0.0 EQUIPMENT -SERVICE RIG 01:00- 04:00 3.00 INTI CASING RU P PREP LINER HANGER/PACKER AND CEMENT HEAD FOR 0.0 LINER RUN -M/U 7"HANGER WITH 7"JOINT BELOW AND 5"DP PUPS ON TOP,STD BACK -P/U 7"CEMENT HEAD WITH 5"DP PUP AND FULL JOINT AND TO UP 04:00- 04:30 0.50 INTI CASING SAFETY P PJSM FOR RUNNING 7"LINER 0.0 04:30- 06:00 1.50 INTI CASING RIH P RUN 7"LINER ASSEMBLY PER PROGRAM 0.0 -P/U 7"SHOE TRACK WITH FLOAT SHOE -FILL LINER AND VERIFY FLOATS HOLDING.FLOATS GOOD -BAKER LOCK ALL BTC CONNECTIONS BELOW LANDING COLLAR JOINT -P/U 7",26 LB-FT VT LINER,APPLY JET LUBE SEAL GUARD. TORQUE TURN 7"TO TQ OF 11,950 FT-LB. -CONTINUE RIH WITH 7"LINER PER PROGRAM -MW 10.9 IN/10.9 OUT NO LOSSES WHILE RIH Mud Log Information Formation: TSGR Formation top @: 11,954.00(ft) Max Background Gas: 'Max Trip Gas: Lithology: SAND Max Connection Gas: Pore Press: Materials/Consumption Item Unit Usage On Hand Item Unit Usage On Hand FUEL-ULSD-RIG DY25 GAL 2,098 12,949 FUEL-ULSD-CAMP-DY2` GAL 0 2,020 FUEL-ARCD-RIG-DY25 GAL 1,744 14,350 Personnel Personnel on Board: 52 Company No.People Hours Company I No.People Hours BP 52 Cumulative Phase Breakdown Phase Planned Change of Scope Total Hours Total Cost Prod %Total NPT %Total WOW %Total Prod %Total NPT %Total WOW %Total PRE 152.50 98.39 2.50 1.61 0.00 0.00 0.00 0.00 155.00 930,486.60 DECOMP 70.50 95.92 3.00 4.08 0.00 0.00 0.00 0.00 73.50 511,681.53 WEXIT 54.50 100.00 0.00 0.00 0.00 0.00 0.00 54.50 570,118.56 INTI 200.50 87.17 29.50 12.83 0.00 0.00 0.00 0.00 230.00 3,231,148.50 Total 478.00 93.18 35.00 6.82 0.00 0.00 0.00 0.00 513.00 5,243,435.19 Remarks PJSM AND HAZARD ASSESSMENT PRIOR TO ALL OPERATIONS. SPCC WALK AROUND OA PRESSURE=0 PSI CHANGES/DRILLS CARLO CREW: POSITION CHANGE-STANLEY WORKING AS MOTORMAN OSCAR HENRY FILLING IN AS FLOORHAND KICK WHILE TRIPPING DRILL(D1):CRT 2-MIN 20-SEC 12/10/2012 4:53:59AM North America - ALASKA - BP Page 5 of 5 Daily Operations Report (RE-ENTER- ONSHC Operator: BP Event Type: RE-ENTER-ONSHORE Report: 19 Well/Wellbore No.: Y-19/01 Event Objective DRILL SIDETRACK A Date: 12/9/2012 Well Type: DEVELOPMENT Site: PB Y Pad Job Number: 1 Acct Proj No: X3-011 M2:DRI LL Contractor: DOYON DRILLING INC. Rig: DOYON 25 Remarks FRITTS CREW: . FIRE DRILL:CRT 1-MIN 24-SEC PERMITS: LO/TO-3 MAN RIDER-1 ALTERNATE ENTRY-0 FLUID TRANSFER-10 HOT WORK-1 HAZARD RECOGNITION PLUS WORKSHEETS-0 12/10/2012 4:53:59AM /v „ , ,ir)) I 1 j SEAN PARNELL, GOVERNOR ALASKA OIL AND GAS 333 W.7th AVENUE,SUITE 100 CONSERVATION COMMISSION ANCHORAGE,ALASKA 99501-3539 PHONE (907)279-1433 FAX (907)276-7542 John Egbejimba Engineering Team Leader BP Exploration (Alaska), Inc. P.O. Box 196612 Anchorage, AK 99519-6612 Re: Prudhoe Bay Field, Prudhoe Bay Oil Pool, PBU Y-19A BP Exploration (Alaska), Inc. Permit No: 212-020 Surface Location: 1462' FNL, 456' FEL, SEC. 33, T11N, R13E, UM Bottomhole Location: 1996' FSL, 2273' FEL, SEC. 27, T11N, R13E, UM Dear Mr. Egbejimba: Enclosed is the approved application for permit to drill the above referenced service well. This permit to drill does not exempt you from obtaining additional permits or an approval required by law from other governmental agencies and does not authorize conducting drilling operations until all other required permits and approvals have been issued. In addition, the Commission reserves the right to withdraw the permit in the event it was erroneously issued. Operations must be conducted in accordance with AS 31.05 and Title 20, Chapter 25 of the Alaska Administrative Code unless the Commission specifically authorizes a variance. Failure to comply with an applicable provision of AS 31.05, Title 20, Chapter 25 of the Alaska Administrative Code, or a Commission order, or the terms and conditions of this permit may result in the revocation or suspension of the permit. Sincerely, r Daniel T. Seamount, Jr. "rL Chair DATED this() day of February, 2012. cc: Department of Fish 86 Game, Habitat Section w/o encl. (via e-mail) Department of Environmental Conservation w/o encl. (via e-mail) STATE OF ALASKA RECEIVED -z' . • ALAS1.,-.OIL AND GAS CONSERVATION COMMI:,—,ON PERMIT TO DRILL FEB 1 0 2012 20 AAC 25.005 1a.Type of work: lb.Proposed Well Class: IN Development Oil 0 Service-Winj 0 Single Zone ALJ aSeft6gfid*+§°T SI011 ® ❑ Drill Redrill 0 Stratigraphic Test 0 Development Gas 0 Service-Supply 0 Multiple Zone Coalbe GG8 _■ as y rates • ❑ Re-Entry 0 Exploratory 0 Service-WAG 0 Service-Disp �f1c�10 r".f. ale Gas 2. Operator Name: 5.Bond: ® Blanket 0 Single Well , 11. Well Name and Number: BP Exploration(Alaska) Inc. Bond No. 6194193 PBU Y-19A 3. Address: 6. Proposed Depth: 12.Field/Pool(s): P.O. Box 196612,Anchorage,Alaska 99519-6612 MD 15745' TVD 8776' Prudhoe Bay/Prudhoe Bay 4a. Location of Well(Governmental Section): 7. Property Designation(Lease Number): Surface: ADL 028287 1462'FNL,456' FEL, Sec.33,T11N, R13E, UM Top of Productive Horizon: 8. Land Use Permit: 13. Approximate Spud Date: 2071' FSL,827' FEL, Sec.28,T11N, R13E, UM May 30,2012 Total Depth: 9.Acres in Property: 14.Distance to Nearest Property: 1996' FSL,2273'FEL,Sec.27,T11N, R13E, UM 2560 15165' 4b. Location of Well(State Base Plane Coordinates-NAD 27): 10.KB Elevation above MSL: 80.40' feet 15.Distance to Nearest Well Open Surface: x- 644362 y-5948784 Zone- ASP4 GL Elevation above MSL: 49.74' feet to Same Pool: 21' 16.Deviated Wells: Kickoff Depth: 2750' feet 17.Maximum Anticipated Pressures in psig(see 20 AAC 25.035) Maximum Hole Angle: 111 degrees Downhole: 3255 Surface: 2382 18. Casing Program: Specifications Top-Setting Depth-Bottom Quantity of Cement,c.f.or sacks Hole Casing Weight Grade Coupling Length MD , TVD • MD TVD (including stage data) 8-1/2" 7" 26# L-80 Vamtoo 9255' 2600' 2505' 11855' 8821' 226 sx Class'G' 6-1/8" 4-1/2" 12.6# L-80 Hvdril 4040' 11705' 8712' 15745' 8776' 95 sx Class'G' rcp 19. PRESENT WELL CONDITION SUMMARY(To be completed for Redrill and Re-entry Operations) Total Depth MD(ft): Total Depth TVD(ft): Plugs(measured): Effective Depth MD(ft): Effective Depth TVD(ft): Junk(measured): 9800' 9235' 9119' 9758' 9196' 9740' Casing Length Size Cement Volume MD TVD Conductor/Structural 110' 20" 8 cu vds Concrete 110' 110' Surface 2704' 13-3/8" 3723 cu ft AS III&II,1863 cu ft AS III, 1860 AS II 2704' 2704' Intermediate 9355' 9-5/8" 1910 cu ft Class'G' 9355' 8824' Production Liner 690' 7" 276 cu ft Class'G' 9110'-9800' 8600'-9235' Perforation Depth MD(ft): 9376'-9620' Perforation Depth TVD(ft): 8844'-9069' 20.Attachments: 0 Property Plat ® BOP Sketch IN Drilling Program 0 Time vs Depth Plot 0 Shallow Hazard Analysis IN Diverter Sketch 0 Seabed Report ®Drilling Fluid Program ®20 AAC 25.050 Requirements 21. Verbal Approval: Commission Representative: Date: PP P 22. I hereby certify that the foregoing is true and correct. Contact Rahul Madarapu,564-4147 Printed Name/ ohn Egbejimba Title Engineering Team Leader Prepared By Name/Number Signatur- 1(, es'- ,/, fir — Phone 564-5859 Date 9-1q10. Joe Lastufka,564-4091 V Commission Use Only Permit To Dril /API .mber: Permit royal at See cover letter for Number: a/� D 50-029-21857-01-00 LI n t other requirements Conditions of Approval: If box is checked,well may not be used to explore for,test,or produce coalbed methane,gas hydrates,or gas contained shales: Other: 3.560 f$ /6oP_ I S1--- Samples Req'd: q Yes 'No Mud Log Req'd: ,Yes No H2S Measures: Yes 0 No Directional Survey Req'd: Yes 0 No 4tzS0o tog alih. *CP' � Re 2 / 77/ Date '' ).,g--- APPROVED BY THE COMMISSION Form 10-4 vised 07/ This permit is valid for 24 months from the date of approval(20 AAC 25.005( ���� Submit In Duplicate -214112— �rl(> ORIGINAL rte. To: Alaska Oil & Gas Conservation Commission h From: Rahul Madarapu0 b p Drilling Engineer Date: February 9, 2012 Re: Y-19A Permit to Drill Well History: Sundry approval is requested for well Y-19. Y-19 is a Sag and Ivishak Zone 4 producer that was drilled in 1988. Y-19 was hydraulically fractured in the Ivishak in 1990. Post frac rates were good but quickly declined. Y-19 saw some benefits from MI injection in wells Y-03 and Y-06A but is now shut in due to low oil rate. PPPOT-T and PPPOT-IC passed on 12/23/2011. Reason for Sidetrack: Due to low production rate, the well is shut in. Y-19 is proposed to be used to sidetrack and access the Sag river reserves by means of constructing a horizontal sidetrack. Y-19A is among the wells for a proof of concept for Sag River horizontal sidetracks. _ Sidetrack Plan: 3000' of existing tubing will have to be cut and retrieved to allow a casing exit from the 9 5/8" casing. An 8 1/2" open hole intermediate section is proposed to be drilled to the top of Sag river which will then be isolated with a 7" 26# L-80 liner. A 6 1/8" hole will be then be drilled from the bottom of the 7" liner section by briefly drilling into the Ivishak and then continuing its trajectory into the Sag River. The 6 1/8" hole section will then be completed with a 4 1/2" liner system consisting of slotted liner with swell packers. sliding sleeves & ECP: and the solid cemented liner from 12303' and above. The production will be from the Sag river part of the trajectory. MASP: 2381 psi (7.17 ppg pore pressure at TSAG) Pre-Rig Work: (scheduled to begin March 01, 2012) 1. S Pull TTP, D&T to TD. 2. F Injectivity Test 3. F Fullbore P&A- 17 bbls of 15.8 class G cement. TOC at 9043'. ✓ 4. F MIT-T. MIT-IA. - PT cement to 3500 psi. Pressure test CSG to 3500 psi. Notify State inspector to witness PT. 5. S D&T to TOC. Pull GLV - Obtain sample of cement. Pull deepest GLV for circ point. 6. F Circ out Well 7. E Jet Cut TBG - Jet cut at 3000' MD. 8. V Set BPV. Rig Work: (scheduled to begin on May 30, 2012) 104 1. MIRU Doyon 25 and test BOPE (2 sets of 2 7/8" x 3 1/2"VBR)to 250 psi low and 3500 psi high. 2. Pull and LD 3 1/2" 9.2# L-80 tubing. 3. Set 9 5/8" EZSV at 2750' and pressure test to 3500 psi high. 4. Set 9 5/8"whipstock 2750' and Mill 8 1/2"window and 20' of rat hole with 9.2 ppg mud. 5. PU into 9 5/8" casing. Perform a LOT. POOH New PTD Y-19A: l.ct. for 5 r 6. Drill Intermediate Build Section: 8 1/2" OH, —1500' (4 deg/100' planned) with Gamma Ray/Resistivity/Gyro MWD. 7. Drill Intermediate Tangent Section: 8 1/2" OH, 7600' with Gamma Ray/Resistivity/Neutron/Azim Density/Azim Caliper to—5' into TSAG. 8. Install 7" rams in upper VBR cavity and pressure test to 3500 psi. ✓ 9. Run 7" 26# L-80 liner to 150' inside 9 5/8"casing. v 10. Cement 7" liner to 1500' above shoe with 15.8 ppg Class G cement. 3� P 11. Replace upper VBR's from 7"rams to 2 7/8"x 5 1/2"variable rams and pressure test tosi. 12. Run CBL log to confirm isolation.✓ 13. MU BHA and RIH to drill 6 1/8"production section. 14. Drill 6 1/8"build section from 7" shoe (15 deg/100' planned)to place wellbore into Sag river with GR/Resistivity/Neutron-Density. 15. POOH and replace BHA to drill 4 deg/100' planned DLS and drill production hole in Sag river to TD with GR/Resistivity/Neutron-Density. 16. Run 4 1/2" 12.6# L-80 liner with swell packers, sliding sleeves and ECP to 150' inside 7" liner. Liner is to be combination of slotted and solid with solid section above ECP depth into 7" liner. 17. Cement between ECP to 150' above shoe with 15.8 ppg Class G cement. 18. Run 4 1/2" 12.6# Cr-85 completion from 4 1/2" liner top to surface. 19. Freeze protect well to 2200' TVDSS with diesel. 20. Set 4 1/2"production packer and individually test the tubing to 3500 psi and annulus to 3500 psi for 30 minutes each. 21. ND BOPE,NU Tree and test to 5000 psi. 22. Pull TWC. Set BPV and test to 2000 psi. 23. RDMO. Rahul Madarapu Drilling Engineer 9075644147 Attachments: Current Well Schematic Pre-Rig Well Schematic Proposed Well Schematic Directional Plan Rig BOP Schematic Rahul Madarapu Drilling Engineer 907 564 4147 CC: Well File Sondra Stewman/Terrie Hubble Planned Well Summary et Well Y-19A Well Producer Object ve Sag River API Number: Current Status Shut-In Estimated Start Date: 06/01/12 Time to Complete: 36 Days Surface Northing Easting Offsets TRS Location 5,948,784 644,362 3816.5 ' FSL/455.6' FEL T11N R13E 33 TSAG Northing Easting TVDss Offsets TRS 5,952,310 643,915 8732 2071' FSL/827.2' FEL T11N R13E 28 Northing Easting TVDss Offsets TRS 2071 FSL 827 FEL T11N R13E 28 5,952,310 643,915 -8732' Production 5,952,310 644,630 -8735' 2057 FSL 112 FEL T11N R 13E 28 Hole Target 5,952,310 645,685 -8740' 2037 FSL 4338 FEL T11N R13E 27 Locations 5,952,312 646,194 -8686' 2029 FSL 3828 FEL T11N R13E 27 5,952,310 646,645 -8678' 2018 FSL 3378 FEL T11N R13E 27 5,952,310 647,095 -8685' 2009 FSL 2928 FEL T11N R13E 27 BHL 5,952,310 647,750 -8687' 1996 FSL 2273 FEL T11N R13E 27 Planned KOP: 2750' MD/2660' TVDss Planned TD: 15,745' MD/8687' TVDss Rig: Doyon 25 BF/RT: 39.5'/49.74' RTE: 89.24' Directional-Schlumberger WP07 KOP: 2750' MD Maximum Hole Angle: -62° in the 8-1/2" intermediate section -111° in the 6-1/8" production section Close Approach Wells: Due to close approach, there are 4 Wells that require a tubing tail plug until the intermediate section has been drilled and cased. These wells are Y-12, Y-23B, Y-26A&Y-33. Duet co ose approach, there are 3 wells that require deep set plugs until the production section has been drilled and cased. These wells are Y-02A, Y- 03A&Y-04. Survey Program: 2750' to 8521'MD = INC + GyroMWD 8521' to 15745' MD = MWD+IIFR+MS Nearest Property Line: 15,165' Nearest Well within Pool: 21' to Y-12 at the casing exit from 9 5/8" Formation Tops & Pore Pressure Estimate (SOR) Estimated Depth Hydrocarbon Most Likely Minimum Pore Maximum Pore Formation Formation Top Uncertainty Bearing Pore Pressure Pressure(EMW Pressure(EMW (TVDss) (+l-TVD ft) (Yes/No) (EMW ppg) ppg) ppg) BPRF -1,940.0 50' No 8.45 8.35 8.50 SV4 -2,359.0 25' No 8.45 8.35 8.70 KOP @ 2750' MD -2,660.0 0 No 8.45 8.35 8.70 SV3 -2,883.0 25' No 8.45 8.35 8.70 SV2 -3,118.0 25' No 8.45 8.35 8.70 SV1 -3,468.0 30' No 8.45 8.35 8.70 UG4 -3,984.0 30' No 8.45 8.35 8.70 UG3 -4,279.0 50' No 9.20 8.35 9.30 UG1 -4,751.0 50' No 9.20 8.35 9.30 WS2 -5,279.0 30' No 8.45 8.35 9.00 WS1 -5,508.0 30' No 8.45 8.35 9.00 CM3 -5,714.0 35' No 8.70 8.35 9.10 CM2 -6,182.0 75' No 9.00 8.35 9.80 CM1 -6,889.0 75' No 9.60 9.6 10.50 THRZ -7,200.0 35' No 9.60 9.6 10.50 LCU -7,438.0 35' No 9.60 9.6 10.50 TKNG -7,456.0 50' No 9.60 9.6 9.90 TJF -7,875.0 30' No 9.60 9.6 9.90 TJE -7,983.0 30' No 9.60 9.6 9.90 TJD -8,268.0 30' No 9.60 9.6 9.90 TJC -8,449.0 30' No 9.60 9.6 9.90 TJB -8,573.0 30' No 9.60 9.6 9.90 TJA -8,648.0 30' Yes 9.60 9.6 9.90 TSGR -8,729.0 30' Yes 7.17 6.10 7.70 TSHU -8,755.0 30' Yes 7.17 6.70 9.90 TSAD -8,834.0 30' Yes 7.17 6.72 7.60 Invert in upper Z4 -8,849.0 Yes 7.17 6.72 7.60 TSAD -8,832.0 30' Yes 7.17 6.72 7.60 TSHU -8,751.0 30' Yes 7.17 6.70 7.60 Comments Most likely Sag-Shublik-Ivishak pore pressure based on Y-04 SBHP of 3280 PSI dated 8/6/10(see section 10). Casing/Tubing Program Hole Liner/ Wt/Ft Grade Conn. Burst Collapse Length Top Bottom Size Tbg O.D. (psi) (psi) MD/TVDrkb MD/TVDrkb 8-W 7" 26# L80 VamTop 7,240 5,410 9,255' 2600'/2510' 11,855'/8732' HC (-150' lap) 6-1/8" 4 1/2" 12.6# L-80 Hydril 8,430 7,500 4040' 11,705'/8626' 15,745'/8687' 521 (-150' lap) 11,710'/8629' Tubing 4 W' 12.6# 13Cr-85 Top HC 8,430 7,500 11,710' surface production liner TBS) Mud Program Intermediate Mud Properties: LSND 8-1/2" hole section Depth Interval Density(ppg) PV YP API FL HTHP FL MBT PH 2750'-8521' 9A 5-20 20-25 <10 NA <20 8.5-10.0 KOP to CM2 8521'-9716' 9.8 5.20 20-25 <10 N/A <20 8.5-10.0 CM2 to THRZ 9716' -11855' 10.8 5-20 20-25 <10 <14 <20 8.5-10.0 THRZ to TSAG Production Mud Properties: Reservoir Drill-in Fluid 6-1/8" hole section Depth Interval Density (ppg) PV YP LSVR API Fl pH MBT 11855'-15,745' 8.5-8.8 4-9 20-25 >13,000 NC 8.5-10.0 <3 Logging Program 8-1/2" Intermediate: Sample Catchers-as required by Geology Drilling: Dir/at-bit-GR/Res/Neutron/Azimuthal Density/Azimuthal Caliper Open Hole: None Cased Hole: Cement Bond Log 6-1/8" Production: Sample Catchers-as required by Geology Drilling: Dir/at-bit-GR/Res/Neu/Den (both for the build and lateral BHA's -all real time) Open Hole: None Cased Hole: None Cement Program Casing Size _ 7" 26#, L-80 Intermediate Liner Basis: Lead: None Tail: Volume of 1500' open hole above the shoe + 30% excess+ 80' shoe track. • Tail TOC at-1500' above shoe at-10,355' MD. Total Cement Spacer 25 bbls of Viscosified Spacer weighted to 12.5 ppg (Mud Push II) Volume: Lead N/A Tail 47 bbls, 262 cuft, 226 sks 15.8 lb/gal Class G + adds- 1.17 cuft/sk Temp BHST=200° F, BHCT TBD by Schlumberger Casing Size 4.5" 12.6#, L-80 Hydril 521 Production Liner Basis: Lead: None Tail: Volume of open hole from ECP depth and above +40%excess+ 150' of liner lap+200' of 7"x 4" DP excess. LP X23'9`' Tail TOC: 11,705' MD (cement at TOL w/excess to be circulated out) Total Cement Spacer 25 bbls of Viscosified Spacer weighted to 12 ppg (Mud Push II) Volume: Lead N/A Tail 19.7 bbls, 110 cuft, 95 sks 15.8 lb/gal Class G + GasBlok+ adds- 1.17 cuft/sk Temp BHST=210° F, BHCT TBD by Schlumberger • Surface and Anti-Collision Issues Surface Shut-in Wells: There are no wells requiring surface shut-in in order to move onto the well. At surface, the Y-12 well is —33' to the East and the Y-26 well is —33' to the West. Close Approach Shut-in Wells: Due to close approach, there are 4 Wells that require a tubing tail plug until the intermediate section has been drilled and cased. These wells are Y-12, Y-23B, Y-26A&Y-33. Due to close approach, there are 3 wells that require deep set plugs until the production section has been drilled and cased. These wells are Y-02A, Y-03A& Y-04. Hydrogen Sulfide Y-Pad is considered an H2S site. Recent H2S data from the pad is as follows: (5) H2S Data Well Name H2S Level Reading Date Parent Well(if sidetrack) Y-19 52 ppm 8/14/2010 #1 Closest SHL Well H2S Level Y-12 10 ppm 12/15/2000 #2 Closest SHL Well H2S Level Y-26A 20 ppm 2/29/2008 #1 Closest BHL Well H2S Level Y-04 18 ppm 1/1/2011 #2 Closest BHL Well H2S Level Y-03A N/A - Injector #3 Closest BHL Well H2S Level Y-02A 20 ppm 7/15/2005 #4 Closest BHL Well H2S Level Y-17B 10 ppm 12/2/2001 Max. Recorded H2S on Pad/Facility Y-33 350 ppm 2/23/2011 Y-pad is considered an H2S facility. Other Relevant H2S Data (H2S alarms from rigs,etc.) Faults Fault#1 -Kingak JE 11,000 -8,215 30-40' DTW High Fault#2-Sag/Shublik 13,615 -8,740 45-55' DTW Low Fault#3-Sag 15,080 -8,685 5-15' DTW Medium Fault#4-Sag 15,400 -8,685 10-20' DTE High Comments Fault predictions based on WP07 Drilling Waste Disposal • There is no annular injection in this well. • Cuttings Handling: Cuttings generated from drilling operations will be hauled to grind and inject at DS- 04. Any metal cuttings will be sent to the North Slope Borough. • Fluid Handling: Haul all drilling and completion fluids and other Class II wastes to DS-04 for injection. Haul Class I waste to DS-04 and/or Pad 3 for disposal / Contact the GPB Environmental Advisors (659- 5893) f/guidance. Well Control Well control equipment consisting of 5,000 psi working pressure pipe rams (2), blind/shear rams, and annular preventer will be installed and are capable of handling the maximum potential surface pressures. Based upon calculations below, BOP equipment will be tested to 3,500 psi. BOP regular test frequency for Y-19A will be 14 days during drilling phase and 7 days during de-completion and surface casing work. Intermediate Interval Maximum anticipated BHP (3255JD;i @ TSAG at 8732' TVDss (7.17 ppg EMW) Maximum surface pressure 2382 psi (.10 psi/ft gas gradient to surface) Kick tolerance 129.1 bbls with 10.8 ppg mud and 15.2 ppg frac gradient (11.9 ppg LOT needed for ECD management) Planned BOP test pressure Rams test to 3,500 psi/250 psi. Annular test to 2,500 psi/250 psi 9-5/8" Casing Test/7" 3500 psi surface pressure Casing Integrity Test—8-1/2" hole LOT after drilling 20' from middle of window 7" Casing The VBRs will be changed to 7" rams to accommodate the 7" drilling liner Production Interval Maximum anticipated BHP 3255 psi @ TSAG at 8732' TVDss (7.17 ppg EMW) Maximum surface pressure 2382 psi (.10 psi/ft gas gradient to surface) Infinite with 8.6 ppg mud and 16.23 frac gradient. Kick tolerance (9.7 FIT needed for ECD management) Planned BOP test pressure Rams test to 3,500 psi/250 psi. Annular test to 2,500 psi/250 psi Integrity Test—6-1/8" hole FIT after drilling 20'-50' of new hole 4-1/2" Production Liner 3500 psi surface pressure Planned completion fluids 8.5 ppg Seawater/6.8 ppg Diesel . Doyon 25 BOPE Schematic i . . 1 .1 'II 1 1 I I II .11 iir 1,,.1r 1 I• `12: - ,1 ' .17 itl--1 cill ' t - I i II8 1 811111 ..- 1- ai 4-1 0 , ,.. ,i•iii -...A :: •,,,,;...„ rt ''l •'',=:1 - ,,--f --1:1- . . , . ( *1 1 ,.• , _ .,. Z ,c ;57 , :4.....,......: r\ -. .i MION01111111111•11111.11. Li CO ff$ Crfft- 1: = r‘i. , -?_. ..,---, cr, 1 ipt 1. 4 hf ft lt,! P i' I 11 a. el CI lia al IA t t #2c -_._ ., 1 — \ N , IN I I II-I ,,. - ,z4 44, 4 , . , , , . . i -Li c. 1 .: , I _ I 1 I 3 - —____—1 . - •,'•' „?*1, 1 ,,..._ .,- ,. . (7— = i. I Current Schematic: 'SEL= 4'RICEVOY 1 _1 VJ3FEAC= 610EVOY `:A=EI'!MO TEt ACT ATOR= C11S KB ELLV- 8C.39' HE. LV- bIM.' KO - 323I'-' I 2098' H3-1/7 OTIS 5SSV LAND it C-2 75; WIArgk- 25@SOX' Dae.LrlMD- 9c 5' i in Der-Lrl TVC- 2E03 SS I13-moi't75C,I'LM,L-EU,13-1234 i' 2704' 1 GA5 LFT V.AP CRELS 8T lT3 TVD GEV TY'E VLV LATCH FORT GA__ 8 M11,' 3229 10 O1X OW RIM 0 11/17'=1 lir 6 660€ 5401 26 OM DA/ Iihl 0 11/17!11 , /i/6 6937 7S 016 IM 14M a 11H T11 9 AI's t17 73 01 11'.1Y HA n rw AVrri 2 8887 0215 24 OTIS O'tt' R. 0 1 8074 ECELS 24 OILS O41Y R11 0 11117//1 Minimum ID=2.75" a 2096' m 8978' —3S-',7 CI I5 RA 5I D31 V, I)= ,-Y.r 3-112"OTIS SSSV NIPPLE I 9027' I ':TEC SEAL A55Y I 90+43' —10-5'B .3-'2"O11S r'K't,ID•2.372' f 9088' —3'12IARKDZX Mr,C.-273' 1 9119' —--11:7 14151d(I- X N1U II: ':r 1'1'PCrT LN?H 9123' ® — 9119' H3 !2 XX.PLLG(1211i111)) 3-1/7111G97€ 1.115 O'A37Li` 12-2.1,2' 9152' 9152' 3.'2 1.4t'_=G,0=2.992" I 9152' HELM7TTLOCOED:2122/901 943/8'C50,1/K,L-80,1_,-8E81' H 9355' 1 a Ilk • I $928' Hr%%ma i 10M I PCTtroRA1104N SUMMAR'''. REF LOG ElHLZ ON D911141118 ANGLE AT TOP PEW:23'109373' Note Malar to r*oCuoJon Lor hvernal ce-1 gala 51ZE 5rf NTERVAL Op-t52 OA-E 5' 4 9976 9405 3 59/-7,86 C? 4 9491-3:433 O :Sr toaii 9' 4 3,911-111t71) O :.''.A'iia- > I 9740' H1r14CIv4'AKCE 9FJDCE I'LLO-C.`_.G3,71 PBIL7 976W 7'LN3 204 =&: 3371 bpi' O-&1a r. --I 9890' 14fi, 4441 DA-: RDI 2Y CCbT1C\TO DAT: ^iLV G" O0414C4-0 MIDI 0:CAY LAT 09!'988 ORO NAL COM rt ET1ON V03...L. 'V-13 3&'2',131 1=141-P CORT.C"KOVS PGRNIT No 88 0902 :9111 XE WIIPNG GLV CIO(OM 6/X AP No: 90.029-21857-00 I'1`A/11 tPr/Pr. oIVriO(1'/171t1y sac: a9T11k,RC* 2-/n3f17 GAY Pr, ST NJ(PIU.3(171-7/11) OP 6lplarabon(Alaskal TREE- 1' M01310Y r Y-19 I WELL HEA,D- 1.401310Y Pre-Rig NOTES ACTUATOR- OTB KH.EL B!- 3329' IBF.ELEV- 51E15' 14:111.112 SA. 32D0' 2033? H3-1/1'OTE S'SSU LT ND NP,IG-2.75' MacAlgk- 2 Dal= MD- 9416' CAbrti Ttiio- 3300 fSS SS 13-3R'CSC;,72Y,L-30,ID-12347' H 2701' k __,_�� GAS 1 FT LW ND RELS ISTI MD I TvC' DE/ TYPE VLV LATCH PO RT DATE Jet cut I�11 3000' , 6 3213 3145 11 OTE' DOME RM 16 09r1&+06 r L 5 5593 532❑ 25 OTE' DOME RLI 16 09f13 4 1176 6751 25 OTE', DOME RM 16 09113/1:16 3 8153 7645 23 OTE 0 M P. ❑ 0911&+06 2 84&7 8133 24 OTE DWI RA 0 1 887 1 8304 24 OTE 9J RM 20 09:1306 Minimum ID=2.75"@ 2096' 3-1/2" CUTIS SSSV NIPPLEI I 897L HOTSXASLDINGSLEE1E.ID-2.750 972'7 TBGSEALASSY T0009043'' 94 HM.:'x3-1/ZOT1SPKR,0-2 97Z 9:i3E 3-1/2'PA RKER X N P,ID-2.75' 10POF7'LNR — 9123' — qI I 9'11' u3-L7 PARIB XNP,ID-235' 3-1/2 TOG,9<^N,L-30,LE Y,IG-2'+32 — 9152 I ' 9152 3-1/2'1.1UL6J 9162 H ELI.ID TT LOGGED 12.:2.g3 9-5,6'C-S,4710,L-30,D-3.631' H 33 1 L. 0-1 9328' HI.l4RKER.IOINT 937x' PERFORP.T1]NSUTAIAARY Top of Sag(i? REF LOG:BH'w ON 09/14.63 ANG LE AT TOP PERF:2342 9376' Not:ReYr t Prod!CZDI DO Tor i Ctrb3Ipe rrmta SEE SPF INTERJAL Opl,Sgz DATE 4 9316-9403 0 CE/17.63 4 9491-'Xd53. 0 Cr3/17 r33 5' 4 96E0-9623 0 1D/17M Allihr 97+1 Cf HMG NA RA ICE 0RICGE PL L-0&/U3f91 MID — 97E2 I A. - XYY 7'LNR,2911,Lam,❑371 bpi,D-6.181' — EQCrJ J. .A DATE REke 8''/ COMMENT; DATE REV BY COMMENTS PRUDF3E BAY UNIT 05/19163 ORIGINAL COMPLETION QUELL: Y-19 C16121A1 RN/TP CORP. 1)31•S PERMIT No:EE-0%0 - IN/21.96 DAV/PAG GLV C.O p/18.06) API Na: 50-029-221&57-00 Sec.33.T11N,R13E EP laplaraton(Alai Na) TREE- 1'MCEJOY Y-1 9A SAFETY NOTES InIg LHEA O- MCEJOY i ACTUATOR- OTE Proposed RST kB.ELE?- 592' BF.ELE!- 19.7 ' I 2j97 I-ISE-25J NP,ID- FmP- 2TSQ CO I LtaxA1gk-1111 12303 - -- 2.59y I--ILUBR.I+P.LSIEf�cot to!ll?sl DatrmIAD- 1S74S = GAS LFTRRNDRELS Datum ND- 3E17' TOP OF i' '-Iri[R I 1 ST MD ND DB! TYPE VLV LATCH PORT DATE 5 13-3,7 C93,72k,Lam,ID-12347' - 2744' 1 5 3663 351 1 7110 55m 3 90E2 68m 2 WM 7860 1 NW 86m Minimum ID = * 9-518"whipstock set at 2750 ft A. t - I 6 —112 x 1 GUAR s 1-i- 16 44o Y-19 14, a % I 61�irii 465' 7410' 412•x 1•GLIti71 I L I 9-5,6'r,..-,17 PO,L-80,D-8E81' H g359 `IJ'6 -14.12'x 1'G L I.I iF 3 10411' Hi 12•x 1'GLUiP2 I L 11542 -41F2'x 1•GIMP 1 Li 11580' 4-12'x NP ID- 3313' 116600' 7'X:4-1/2'PFR 11530' I--I1-10i:NP,ID-3.8i3 I TBG,12.6#,131r-E0,13152 bpT,D-3958' -I 11710' I ' IIII _1-1117r—Ce1 12'XN NP,ID-3.723' 11710' IH1-1/ITUB IM3TAL la-12"hot I10POF 4-12•LNR 11705' E. r- 11714' HLEE I 7'LNR,26P,L-00,VAUTOP 11C H 1185@ A k 45,, 100 az 10.8ppQ 7"@ TSGR P ERFO PATIO N SUMMARY TSA D REF LOG: IBJ A M3LEATTOP PERF: I IPort Cr)Ur I Not:ReYerbProoritbrbalpertdata 110 SEE SPF IrTTHTERV L?'JP,L npu.6,� DATE -12303' ECP 2 II =1 •M M•M .:111I., 6-1/8"hole 1111'' a o p 1-1/2'12.68,1.-80 -I 15745 1 --9U V-1 9A DATE RB!BY CO 1.11.1ENIS DATE REV BY COMMENTS PRUDHOEBAY UNIT 09719133 ORIGINAL COPAPL ETION VP ELL: 'r 062CIO 1 RN TTP ODRRECTO NS PERURIIo: 0921.06 DAVTPAG GUY C.,0 pl1E I6, API No: .D-O29-213S?-O: 12O8/11 USE PROPOSED RST 4upA16 Sec.33,T11N,R13E 6P Bpi oration(Ala Ilia 1 Y-19A Drillin_q Hazards and Contingencies POST THIS NOTICE IN THE DOGHOUSE I. Well Control A. Intermediate Hole - Given a max cretaceous injection pressure of 9.4 ppg, this wellplan dictates the use of a 9.2 ppg LSND mud from the KOP in the SV sands to the top of the CM2. With the pore pressure for the CM2 & CM1 to be estimated at 9.6 ppg, the mud weight will be increased to 9.6 ppg to drill those members of the Colville. For drilling the HRZ and Kingak shales, the mud weight will be increased to 10.8 ppg to provide effective wellbore stabilization. B. Production Hole - The Sag River in this area is expected to be under-pressured at 7.17 ppg EMW. This interval will be drilled with an 8.5 - 8.8 ppg reservoir drill-in fluid. II. Lost Circulation/Breathing A. Intermediate Hole — Y-pad is heavily faulted and major lost circulation is expected in this interval of the well, breathing and/or lost circulation is a possibility while drilling and running casing. Due to the shallow KOP on this well which exposes all formations from the SV4 to the TSAG while drilling with ECD's associated with the planned 10.8 ppg mud density , breathing and/or lost circulation in the Colville is possible.. B. Production Hole - Lost circulation has been the most severe incident in horizontal sidetracks on Y-Pad. Losses have been severe to moderate although not necessarily in the Sag River. However, the region is highly faulted and there is a possibility of losing returns when crossing faults. There are planned fault crossings at—13,300' MD and 14,750' MD. III. Kick Tolerance/Integrity Testing A. With the planned mud weights, the kick tolerance for the intermediate section is 129.1 bbls, and for the production section is infinite. B. Integrity Testing Test Point Test Depth Test type EMW(lb/gal) 9-%" window 20'-50' from the 9-%" window LOT 11.9 minimum • 7" shoe 20'-50' from the 7" shoe FIT 9.7 minimum IV. Hydrogen Sulfide As Y-Pad is considered an H25 site, refer to the ADW "Hydrogen Sulfide" SOP for the appropriate operational guidelines. The H2S reading for Y-19 on 8/14/2010 was 52 ppm and the highest recorded H2S on the pad was 350 ppm on Y-33. V. Faults Formation Where Encounter Fault MD Intersect TVDss Intersect Est.Throw Throw Direction Uncertainty Fault#1 -Kingak JE 11,000 -8,215 30'-40' DTW High Fault#2-Sag/Shublik 13,615 -8,740 45'-55' DTW Low Fault#3-Sag 15,080 -8,685 5'-15' DTW Medium Fault#4-Sag 15,400 -8,685 10'-20' DTE High Comments Fault predictions for WP07,Used 13 project:FinaIHDPic_ZeroPh_EQ.bri, IPA_I3_003V_v002_23Jun11 velmodel VI. Anti-Collision Issues There 7 wells which fail Major Risk analysis. These are Y-02A, Y-03A, Y-04, Y-12, Y-23B, Y-26A &Y-33. CONSULT THE Y-PAD DATA SHEET AND THE WELL PLAN FOR ADDITIONAL INFORMATION bp 0 Y-19A(P7)Proposal Report Schlumberger (Del Plan) Report Date: December 27,2011-04:52 AM Survey/BLS Computation: Minimum Curvature/Lubinski Client: BP Vertical Section Azimuth: 90.000°(True North) Field: Prudhoe Bay Unit-WOA Vertical Section Origin: 80008 0.000 ft 1VD Reference Datum: RTE Well: l8lot: Y-1`P7'-19 F® ���"�Z'lyand IVO Reference Ee Elevation: 89.240 ft above MSL Borehole: Y-19A W Seabed/Ground Elevation: UWi/APIB: Magnetic Declination: 20.903° Survey Name: Y-19A(P7) Total Field Strength: 57650.627 nT Survey Date: November 02,2011 Magnetic Dip Angle: 80.992° Tort I AHD I DDI/ERD Ratio: 285.187°/10240.606 ft/6.711/1.148 Declination Date: June 01,2012 Coordinate Reference System: NAD27 Alaska State Plane,Zone 04,US Feet Magnetic Declination Model: BGGM 2011 Location Lat I Long: N 70°16'3.07233",W 148°49'57.41877 North Reference: True NOM Location Grid NIE Y/%: N 5948784.000 SUS,E 644362.000 ftUS Grid Convergence Used: 0.000° CRS Grid Convergence Angle: 1.09885148° Total Corr Mag North->True 20903° NOM: Grid Scale Factor: 0.99992367 Local Coord Referenced To: Well Head Comments MD Incl Arlin True TVDSS TVD VSEC NS EW TF OLS Directional Northing Easting (ft) r) (°l (f0 (ft) (R) (ft) (R) r) (°11008)Difficulty Index (itUS) (itUS) Projected-Up 0.00 0.00 0.00 -89.24 0.00 0.00 0.00 0.00 OM N/A 0.00 5948784.00 64436200 SCH 9/17/88 8.84 000 0.00 -60.40 884 0.00 0.00 0.00 OM 0.00 0.00 5948784.00 64436200 GCTG 39.15 000 0.00 -50.09 39.15 0.00 0.00 0.00 116.7M 000 0.00 5948784.00 64436200 46.79 5.20 116.70 -42.45 46.79 0.01 -0.01 0.01 113.59M 2.62 000 5948783.99 64436201 54.39 0.25 113.59 -34.85 54.39 0.04 -0.02 0.04 110.29M 0.88 0.00 5948783.98 64436204 61.99 0.28 110.29 -2725 81.99 0.07 -0.03 0.07 112.98M 0.44 0.00 5948783.97 644382.07 69.59 0.27 11298 -19.65 69.59 0.11 -0.05 0.11 116.09M 0.21 0.00 5948783.98 844362.11 75.49 0.25 116.09 -13.75 75.49 0.13 -0.08 0.13 124.09M 0.41 0.00 5948783.95 844382.13 88.49 0.18 124.09 -0.75 88.49 0.17 -0.08 0.17 130.06M 0.58 0.00 5948783.92 644362.17 101.89 0.17 130.08 12.65 101.89 020 -0.10 0.20 131.7M 0.16 000 5948783.90 64436221 ' 115.29 0.17 13170 26.05 11529 0.23 -0.13 023 129.54M 0.04 0.00 5948783.87 644362.24 128.49 0.17 129.54 39.25 128.49 0.28 -0.18 0.26 128.11M 0.05 0.00 5948783.85 64436227 141.79 0.18 128.11 52.55 141.79 0.30 -0.18 0.30 127.1M 0.08 0.00 5948783.82 644362.30 155.09 0.18 127.10 65.85 155.09 0.33 -0.21 0.33 126.17M 0.02 0.00 5948783.80 644362.33 168.39 0.18 126.17 79.15 168.39 0.38 -0.23 0.36 127.26M 0.02 000 5948783.77 644382.37 181.69 0.20 12728 9245 181.89 0.40 -0.28 0.40 127.51M 0.15 0.00 5948783.75 644362.40 195.09 0.23 127.51 10585 19509 0.44 -0.29 0.44 126.39M 0.22 0.00 5948783.72 644362.44 208.49 0.25 126.39 119.25 208.49 0.48 -0.32 0.48 124.23M 0.15 0.00 5948783.69 64436249 221.89 0.27 124.23 132.65 221.89 0.53 -0.36 0.53 121.79M 0.17 0.00 5948783.65 644362.54 23519 0.28 121.79 145.95 235.19 0.59 -039 0.59 12047M 0.12 0.00 5948783.62 644362.59 248.49 0.30 120.47 15925 248.49 0.64 -043 0.84 119.96M 0.18 0.00 5948783.59 64436265 261.79 0.32 119.96 172.55 281.79 0.71 -048 0.71 118.57M 0.15 0.00 5948783.55 64436271 275.09 0.32 118.57 18585 27509 0.77 -0.50 0.77 117.22M 0.06 0.00 5948783.52 64436278 288.49 0.33 117.22 199.25 288.49 0.84 -0.54 0.84 115.54M 0.09 0.00 5948783.48 644362.85 301.84 0.33 11554 21260 301.84 0.91 -0.57 091 112.69M 0.07 0.00 5948783.45 644382.92 315.19 0.32 112.89 225.95 315.19 0.98 -060 0.98 111.51M 0.14 0.00 594878342 844382.99 328.49 0.30 111.51 239.25 328.49 1.04 -0.63 1.04 113.81M 0.16 0.00 5948783.39 644363.05 • 34179 0.26 113.81 252.55 341.79 1.10 -0.65 1.10 116.38M 0.17 0.00 5948783.37 644363.12 355.14 0.25 118.38 265.90 355.14 1.16 -0.68 1.16 124.83M 0.27 0.00 5948783.34 644363.17 • 368.49 022 124.83 279.25 368.49 1.21 -0.71 121 131.79M 0.30 0.04 5948783.31 644363.22 • 381.84 0.20 13179 292.60 381.84 1.25 -0.74 125 139.22M 0.24 0.07 5948783.28 644363.26 395.19 0.20 139.22 305.95 395.19 1.28 -0.77 1.28 144.29M 0.19 0.10 5948783.25 6.44383.29 40549 0.18 144.29 319.25 408.49 1.31 -0.81 1.31 148.97M 0.20 0.12 5948783.22 644383.32 421.84 0.18 146.97 332.60 421.64 1.33 -0.84 1.33 151.52M 0.08 0.14 5948783.18 644363.34 435.19 0.20 151.52 345.95 435.19 1.35 -0.88 1.35 158.39M 0.19 0.16 5948783.15 644383.37 44849 0.20 156.39 359.25 448.49 1.37 -0.92 1.37 158.45M 0.13 0.18 5948783.11 844383.39 461.79 0.20 158.45 372.55 481.79 1.39 -0.96 1.39 156.46M 0.05 0.20 5948783.06 844363.41 475.19 0.23 156.48 385.95 475.19 1.41 -1.01 1.41 150.2M 0.23 0.22 5948783.02 844363.43 490.59 0.23 150.20 401.35 490.59 1.44 -1.07 1.44 139.29M 0.18 0.25 5948782.96 644383.46 • 506.04 0.25 139.29 416.80 506.04 1.47 -1.12 1.47 128.57M 0.32 0.29 5948782.91 644363.50 521.49 0.28 128.57 432.25 521.49 1.53 -1.17 1.53 122.05M 0.37 0.33 5948782.86 644363.55 536.99 032 12205 447.75 536.99 1.59 -1.21 1.59 118.06M 0.34 0.37 594878282 644363.61 552.59 0.33 118.06 463.35 552.59 1.67 -1.28 1.67 11476M 0.16 0.39 5948782.77 644363.69 568.19 0.35 114.78 478.95 568.19 1.75 -1.30 1.75 112.44M 0.18 0.42 5948782.73 644363.78 583.74 0.35 11244 494.49 583.73 1.84 -1.34 1.84 110.18M 0.08 0.45 5948782.70 644363.86 599.34 0.35 110.18 510.09 599.33 1.93 -1.37 1.93 108.69M 0.09 0.47 5948782.87 644363.95 614.94 0.35 108.69 525.69 814.93 2.02 -1.40 202 107.42M 0.08 049 594878264 844364.04 830.59 0.37 107.42 541.34 630.58 211 -143 2.11 104.78M 0.14 0.51 594878281 644364.14 646.19 0.35 104.78 556.94 646.18 220 -1.46 220 102.27M 017 0.54 594878258 644364.23 661.74 0.35 10227 572.49 661.73 2.30 -1.48 2.30 99.56M 0.10 0.56 5948782.58 644364.32 677.34 033 99.56 588.09 677.33 2.39 -1.50 2.39 97.82M 0.16 0.58 594878255 644364.42 692.94 0.32 97.82 603.69 892.93 248 -1.51 2.48 97.5M 0.09 0.60 594878253 844384.50 708.54 0.28 97.50 619.29 708.53 2.56 -1.53 2.58 94.47M 0.28 0.62 5948782.52 644384.58 724.14 0.27 94.47 63489 72413 2.63 -1.53 2.63 92.27M 0.11 0.64 5948782.52 644364.66 739.84 0.25 92.27 600.59 739.83 2.70 -1.54 2.70 93.03M 0.14 0.65 5948782.51 64436473 755.54 0.28 93.03 868.29 75553 2.77 -1.54 2.77 92.48M 0.19 0.67 5848782.51 64436480 771.14 032 92.48 681.89 771.13 2.86 -1.54 2.86 91.67M 0.26 070 594878251 644364.88 • 766.74 0.35 91.67 89749 786.73 2.95 -1.55 2.95 90.1744 0.19 072 5848782.51 644366.98 802.34 0.40 90.17 713.09 802.33 3.05 -1.55 3.05 87.29M 0.33 0.74 5948782.51 644365.08 817.99 0.43 87.29 728.74 817.98 3.16 -1.55 3.18 85.02M 0.23 0.77 5948782.51 644365.19 833.44 0.43 85.02 744.19 833.43 3.28 -1.54 328 81.92M 0.11 0.79 5948782.52 644365.31 848.84 0.45 81.92 759.59 848.83 3.40 -1.53 3.40 78.87M 0.20 0.81 5948782.54 844365.42 864.14 0.45 78.87 774.89 884.13 3.51 -1.51 3.51 76.98M 0.16 0.83 5948782.56 644365.54 879.49 0.45 76.98 790.24 879.48 3.63 -1.48 383 75.19M 0.10 0.84 5948782.59 644365.66 894.84 0.45 75.19 805.59 89483 3.75 -1.45 3.75 77.06M 0.09 0.88 5948782.62 644365.78 910.24 0.43 77.06 820.99 91023 3.86 -1.42 3.88 7757M 0.16 0.88 594878265 644365.89 925.59 0.40 7757 838.34 925.58 3.97 -1.40 3.97 74.5M 0.20 0.90 594878268 644366.00 941.04 0.38 74.50 851.79 941.03 4.07 -137 407 6662M 0.19 091 5948782.71 644366.10 956.44 043 86.82 867.19 956.43 418 -1.34 4.18 59.06M 0.49 094 594878274 644366.20 971.84 0.47 59.08 882.59 971.83 428 -1.28 428 56.62M 0.48 0.97 5948782.80 644386.31 987.24 0.47 58.62 897.99 987.23 4.39 -1.21 4.39 54.14M 0.13 0.98 5948782.87 844386.41 1002.59 0.47 54.14 913.34 1002.58 4.49 -1.14 449 52.56M 0.13 1.00 5948782.94 644366.51 1017.64 0.45 52.58 928.38 1017.62 4.59 -1.07 4.59 49.97M 0.16 1.01 5948783.02 644366.61 1032.79 0.42 49.97 943.53 1032.77 4.88 -1.00 4.88 48.06M 0.24 1.03 5948783.09 644366.70 1048.09 0.38 48.06 958.83 1048.07 476 -0.93 476 46.92M 0.28 1.05 5948783.16 644366.78 1063.44 0.35 46.92 974.18 106342 4.83 -0.86 483 42.95M 020 1.06 5948783.23 644366.85 Drilling Office 2.5.1100.0 Prudhoe Bay Unit-WOA\Y-PAD\Y-19\Y-19A\Y-19A(P7) 12/27/2011 5:00 AM Page 1 of 5 Comments MD Incl Azlm True TVDSS TVD VSEC NS EW TF DLS Directional Northing Entine (M r) r) cm (ft) (m (ft) (m r) ri100n)Difficulty Index (RDs) (Rus) 1078.79 0.30 42.95 989.53 1078.77 4.90 -0.80 490 38.01M 0.36 1.08 5948783 29 644366.91 1094.14 0.25 38.01 100488 109412 4.94 -0.75 4.94 31.01M 0.36 1.10 5948783.35 644386.96 110949 0.20 31.01 1020.23 1109.47 4.98 -0.70 4.98 21.5M 0.37 1.11 5948783.40 844366.99 1124.84 0.13 21.50 1035.58 1124.82 5.00 -0.66 5.00 5.47M 0.49 1.13 5948783.44 644367.01 1140.14 0.07 5.47 1050.88 1140.12 5.01 -0.63 5.01 313.63M 0.43 1.15 594878346 644367.02 1155.49 0.03 313.63 1066.23 1155.47 5.00 -0.82 5.00 242.38M 0.37 1.16 5948783.48 644387.01 1170.89 0.03 242.38 1081.63 1170.87 5.00 -0.62 5.00 205.28M 0.23 1.18 5948783.48 644367.01 1186.24 0.05 205.28 1096.96 1188.22 4.99 -0.83 4.99 200.07M 0.21 1.17 594878347 644367.00 1201.49 0.07 200.07 1112.23 1201.47 4.98 -0.64 498 189.35M 0.14 1.17 5948783.45 844387.00 1216.79 0.08 189.35 1127.53 1218.77 4.98 -0.66 4.98 172.68M 0.11 1.18 5948783.44 844388.99 1231.99 0.08 172.88 1142.73 1231.97 4.98 -0.88 4.98 156.95M 0.15 1.18 5948783.41 644366.99 1247.24 0.12 156.95 1157.98 1247.22 499 -0.71 4.99 139.48M 0.32 1.19 5948783.39 844367.00 1262.59 0.18 139.48 1173.33 1282.57 5.01 -0.74 5.01 133.24M 0.49 1.21 5948783.36 644367.02 1277.89 0.25 133.24 1188.63 1277.87 5.05 -078 505 134.27M 0.48 1.23 5948783.32 844387.06 1293.19 0.32 134.27 1203.93 1293.17 5.10 -0.83 5.10 136.25M 846 1.24 5948783.26 644367.12 130859 0.38 13625 1219.33 1308.57 5.17 -0.90 517 138.43M 840 126 5948783.20 844367.19 1323.89 0.45 138.43 1234.83 1323.87 5.24 -0.98 524 141.24M 0.47 128 5948783.12 844367.26 1339.19 0.52 141.24 1249.93 1339.17 533 -1.08 5.33 143.98M 0.48 1.29 5948783.02 644367.35 1354.49 0.57 143.98 1265.23 1354.47 542 -1.20 542 145.43M 0.37 1.31 5948782.91 844367.44 1369.79 0.60 145.43 1280.53 1389.77 5.51 -1.32 5.51 148.42M 0.22 1.33 5948782.78 844387.53 1385.19 0.63 148.42 1295.93 1385.17 5.60 -1.46 5.80 148.86M 0.21 1.34 5948782.85 644367.63 1400.49 0.65 146.88 1311.23 1400.47 5.69 -1.80 5.69 148.88M 0.13 1.36 594878251 644367.72 1415.79 0.63 146.88 1326.53 1415.77 5.79 -1.75 5.79 154.82M 0.13 1.37 5948782.38 644367.82 1431.19 0.57 154.82 1341.93 1431.17 5.67 -1.89 5.87 163.56M 0.68 1.39 5948782.23 644367.90 1446.49 0.50 183.56 1357.23 144647 592 -202 592 16543M 070 1.41 5948782.09 644367.95 1481.79 0.48 185.43 1372.53 1461.77 595 -2.15 5.95 167.2M 0.17 1.42 5948781.97 64436799 1477.19 0.45 167.20 1387.92 1477.16 5.98 -2.27 5.98 168.67M 0.22 1.44 5948781.85 644368.02 1492.59 0.43 188.67 1403.32 1492.56 6.01 -2.38 6.01 171.48M 0.15 1.45 5948781.73 644368.05 1507.89 0.37 171.48 141862 1507.86 6.02 -2.49 6.02 174.88M 0.41 1.46 5948781.63 844368.07 1523.14 032 174.86 1433.87 1523.11 8.04 -2.58 6.04 177.02M 0.35 1.47 5948781.54 844368.08 1538.39 0.28 177.02 144912 1538.36 6.04 -2.88 8.04 170.52M 0.27 1.48 5948781.46 644388.09 1553.64 0.33 170.52 1464.37 1553.81 8.05 -2.74 605 157.68M 0.40 149 5948781.38 644388.10 1568.89 0.42 157.66 1479.62 1568.88 8.08 -2.83 6.08 152.9M 0.80 1.51 5948781.28 644388.13 1584.19 0.43 152.90 1494.92 1584.16 8.13 -2.94 8.13 153.2M 0.24 1.52 5948781.18 644388.18 1599.49 0.42 153.20 1510.22 1599.46 6.18 -3.04 8.18 150.15M 0.07 1.53 5948781.08 644368.23 1614.79 0.40 150.15 1525.52 1614.76 623 -3.13 6.23 148.92M 0.19 1.54 5948780.99 844368.29 1629.99 0.33 148.92 1540.72 1629.96 628 -3.22 6.28 151.37M 0.48 1.55 5948780.90 644368.34 1645.09 0.25 151.37 1555.82 1645.08 632 -328 6.32 157.44M 0.55 1.56 5948780.84 844368.38 1860.24 0.22 157.44 1570.97 1680.21 6.35 -3.34 8.35 159.99M 0.28 1.57 5948780.78 644388.41 1875.39 0.22 159.99 1586.12 1875.36 6.37 -3.39 8.37 165.73M 0.06 1.57 5948780.73 844368.43 1690.49 0.20 185.73 1601.22 1690.46 6.38 -3.45 6.38 167.43M 0.19 1.58 5948780.68 644366.45 1705.69 0.18 187.43 1616.42 1705.86 8.40 -3.49 6.40 169.18M 0.14 1.58 5948780.63 644388.46 1720.84 0.15 169.18 1631.57 1720.81 8.41 -3.54 6.41 178.71M 0.20 1.59 5948780.59 644386.47 1735.99 0.13 176.71 1646.72 1735.96 8.41 -3.57 641 183.78M 0.18 1.59 5948780.55 64436848 1751.19 0.15 183.78 1661.92 1751.16 8.41 -3.61 6.41 189.57M 0.17 1.80 5948780.51 644368.48 1766.34 0.18 189.57 1677.07 176831 6.40 -3.65 6.40 175.01M 0.23 1.60 594878047 64436847 1781.49 0.27 175.01 169222 1781.46 6.40 -3.71 6.40 158.45M 0.70 1.82 5948780 41 844368.47 1796.59 042 158.45 1707.32 1796.56 6.43 -3.80 6.43 159.96M 1.18 1.64 5948780.32 644368.50 1811.74 0.62 159.96 1722.47 1811.71 6.48 -3.93 6.48 182.33M 1.32 1.86 5948780.20 64436855 1826.84 0.83 18233 1737.57 1828.81 8.54 -4.11 6.54 163.98M 1.40 1.69 5948780.02 644368.81 1841.99 1.00 183.98 175272 1841.98 881 -4.34 8.81 187.91M 1.14 1.71 5948779.79 644368.69 1857.14 1.37 167.91 1767.88 1857.10 6.68 -4.65 6.88 172.65M 250 1.78 5948779.48 644368.77 1872.19 1.95 172.65 178291 1872.15 6.75 -5.08 6.75 175.85M 3.98 1.82 5948779.06 844368.85 1887.24 2.55 175.65 1797.94 1887.18 681 -5.68 6.81 178.61M 4.06 1.88 5948778.47 844388.92 1902.29 2.92 17881 181298 1902.22 6.84 -8.38 8.84 180.9M 2.63 1.94 5948777.75 644368.96 1917.44 2.98 180.90 1828.11 1917.35 8.85 -7.16 6.85 181M 0.87 1.97 5948776.97 844368.98 1932.54 288 181.00 1843.19 193243 883 -7.93 883 181.47M 0.66 2.00 5948776.20 644368.98 1947.64 272 181.47 1858.27 1947.51 6.82 -8.67 8.82 162.93M 1.07 2.04 594877546 644368.98 1962.84 2.52 182.93 1873.45 1962.69 879 -9.36 6.79 182.62M 1.39 2.07 5948774.77 644368.97 1977.99 2.37 182.82 1888.59 1977.83 8.76 -10.01 8.76 182.24M 0.99 2.09 5948774.12 644368.95 1993.14 2.25 182.24 1903.73 1992.97 6.73 -10.82 8.73 182.4M 0.81 2.12 5948773.51 644368.93 200824 2.17 182.40 1918.82 2008.06 8.71 -11.20 871 182.43M 0.53 2.14 5948772.93 644368.92 2023.44 2.10 182.43 1934.01 2023.25 889 -11.77 6.89 182.47M 0.48 2.15 5948772.36 644368.91 8PRF 2029.44 207 18247 1940.00 2029.24 668 -11.98 6.68 182.53M 0.46 2.18 5948772.15 644368.90 2038.54 2.03 182.53 194810 2038.34 8.66 -12.31 686 182.23M 0.46 2.17 594877182 64436890 2053.74 1.92 182.23 1964.29 205353 6.64 -12.83 6.64 181.69M 0.73 2.19 5948771.30 644368.88 2068.94 1.80 181.89 1979.48 2068.72 8.62 -13.33 6.62 182.01M 0.80 2.21 5948770.80 644368.88 2084.04 1.72 182.01 199457 2083.81 6.61 -13.79 6.61 181.44M 0.53 2.22 5948770.34 644388.87 2099.14 1.85 181.44 2009.67 2098.91 6.59 -14.23 6.59 180.63M 0.48 2.24 5948769.90 644388.87 2114.34 1.58 180.63 2024.86 2114.10 6.59 -14.66 8.59 181.38M 0.48 2.25 5948769.47 844368.87 2129.44 1.52 181.38 2039.95 2129.19 658 -15.07 6.56 181.46M 0.42 2.28 5948769.06 644388.87 2144.39 1.43 181.48 205490 2144.14 6.57 -15.46 8.57 181.34M 0.60 2.27 594876867 844388.86 2159.29 1.35 181.34 2069.79 2159.03 6.56 -15.82 6.56 182.03M 0.54 2.28 5948768.31 644368.86 217444 1.27 182.03 2084.94 2174.18 8.55 -16.16 6.55 181.94M 0.54 2.30 5948767.97 644368.86 2189.84 1.20 181.94 2100.14 2189.38 6.54 -16.49 6.54 182.65M 0.46 2.30 5948767.64 644366.85 2204.74 1.13 182.85 2115.23 220447 6.53 -16.80 653 184.51M 0.47 2.31 5948767.33 644368.85 2219.79 1.12 184.51 213028 2219.52 6.51 -17.09 6.51 183.15M 0.25 2.32 5948767.04 64436884 2234.84 1.13 183.15 2145.33 2234.57 849 -17.39 6.49 181.68M 0.19 2.33 5948766.74 644368.82 2249.89 1.12 181.68 216038 2249.62 6.48 -1768 6.48 182.61 M 820 2.34 5948766.45 644368.81 2265.04 1.03 182.61 217552 2264.76 6.47 -17.97 8.47 183.6M 0.61 2.35 5948766.16 644388.81 2280.14 0.98 183.80 219082 2279.86 845 -18.23 8.45 185M 0.36 2.35 5948765.90 644366.80 2295.34 0.97 185.00 220582 2295.06 843 -1849 6.43 185.78M 0.15 2.36 5948765.64 644368.78 2310.49 0.95 185.78 2220.97 2310.21 6.41 -1874 6.41 186.59M 0.16 2.38 594876539 844368.77 2325.59 0.92 186.59 2236.06 2325.30 8.38 -18.89 6.38 187.24M 0.22 2.37 594876514 844368.74 2340.69 0.88 187.24 2251.16 2340.40 6.35 -19.22 6.35 188.44M 0.27 2.38 5948764.91 644368.72 2355.84 0.83 188.44 2266.31 2355.55 6.32 -19.45 8.32 189.73M 0.35 2.38 5948764.68 644388.89 2370.99 0.80 189.73 228146 2370.70 6.29 -19.86 8.29 190.82M 0.23 239 5948784.47 644388.66 2388.09 0.73 190.82 2296-56 2385.80 8.25 -19.86 6.25 192.33M 0.47 2.39 5948784.27 644388.63 2401.19 0.88 192.33 2311.66 2400.90 622 -20.04 8.22 195.4386 0.35 240 5948764.09 644368.60 2416.19 0.83 195.43 2326.66 241590 6.17 -20.20 8.17 199.3886 0.41 2.41 5948763.92 644368.58 2431.04 0.57 199.38 2341.50 2430.74 6.13 -20.35 8.13 198.9386 0.49 2.41 594876377 64436852 2445.94 0.57 198.93 2358.40 244564 6.08 -20.49 6.08 198.5754 0.03 2.41 5948763_63 644368.47 SV4 2448.54 0.57 198.57 2359.00 244624 6.07 -20.52 6.07 196.864 0.19 2.41 594876360 644368.46 2460.89 0.55 196.80 2371.35 2480.59 6.03 -20.63 6.03 198.24M 0.19 2.42 5948763.49 644368.43 247579 0.50 198.24 2386.25 2475.49 5.99 -20.76 5.99 199.8M 0.35 2.42 5948763.36 644368.39 2490.69 0.48 199.80 2401.15 2490.39 595 -20.88 5.95 200.71M 0.16 2.42 5948763.24 644368.35 2505.59 0.45 200.71 2416.05 2505.29 5.91 -21.00 591 203.07M 0.21 2.43 5948763.12 844368.31 2520.49 0.42 203.07 2430.95 2520.19 587 -21.10 587 204.86M 0.23 2.43 5948763.02 644368.27 Drilling Office 2.5.1100.0 Prudhoe Bay Unit-WOA\Y-PAD\Y-19\Y-19A\Y-19A(P7) 12/27/2011 5:00 AM Page 2 of 5 Comments MD Ind 6961 True TVD SS ND VSEC NS EW 17 DLS Directional Northing Eluting (ft) (*) (*) (1t) (R) IR) (m (1t) P) (1/100ft)Difficulty Index (RUS) (1tUS) 2535.29 0.40 204.88 244575 2534.99 5.83 -2120 5.83 207.32M 0.16 243 5948762.92 644388.23 2550.14 0.38 207.32 2460.60 2549.84 5.78 -21.29 5.78 210.96M 0.18 244 5948762.83 644368.19 2564.99 0.38 210.98 2475.45 2564.89 5.73 -21.38 5.73 203.25M 0.16 2.44 5948782.74 644388.14 2579.89 0.38 203.25 2490.35 2579.59 5.69 -21.46 5.89 196.16M 0.34 2.44 5948762.65 644388.10 2594.79 0.35 196.18 2505.25 2594.49 5.86 -21.55 5.68 197.59M 0.36 2.45 5948762.56 644368.07 2609.69 0.30 19759 2520.15 2609.39 5.63 -21.63 5.63 196,76M 0.34 2.45 5948762.48 644368.05 262449 0.30 196.76 253495 2824.19 5.81 -21.71 581 199.44M 0.03 2.45 5948762.41 644388.02 2639.39 0.30 199.44 2549.85 2639.09 5.58 -21.78 5.58 200.61M 0.09 2.45 5948762.33 644368.00 265429 0.26 200.61 256475 2653.99 556 -21.85 5.56 201.76M 0.14 246 5948762.26 644367.98 2669.19 0.26 201.76 2579.65 2668.89 5.53 -21.92 5.53 205.07M 0.04 2.46 5948762.19 644367.95 2684.09 025 205.07 2594.55 2683.79 551 -21.98 5.51 208.3454 0.23 246 5948762.13 644387.93 2698.99 023 208.34 2609.45 2698.69 5.48 -22.04 5.48 214.53M 0.16 2.48 594878207 644367.90 2713.79 0.30 214.53 262425 2713.49 5.44 -22.10 5.44 214.8M 0.51 2.47 5948762.01 64436788 272869 047 214.60 2639.15 2728.39 5.36 -22.18 5.38 209.84M 1.14 247 5948761.93 644367.81 Tie-In Survey 2743.59 083 209.84 2654.05 2743.29 5.31 -22.30 5.31 230M 1.12 2.48 5948761.81 64436773 Top of Whipstock 275000 0.38 23000 2660.46 2749.70 5.28 -22.34 528 268.28M 4.92 250 5948761.78 644367.70 Base of Whipstock 2766.00 2.19 288.28 2876.45 2765.89 4.93 -22.39 493 288.28M 1200 2.57 5948781.71 844387.36 Curve 4/100 2779.00 2.19 288.28 2689.44 2778.68 443 -22.40 4.43 283.23M 000 2.58 5948761.69 644366.88 2800.00 2.74 283.23 271042 2799.66 3.54 -22.30 3.54 308.55M 400 2.62 5948781.78 644365.97 2900.00 6.30 308.55 2810.10 2899.34 -3.08 -18.33 -3.08 17.04R 4.00 2.83 5948785.62 844359.28 SV3 2973.57 9.18 313.98 2883.00 2972.24 -10.45 -11.75 -10.45 11.88R 4.00 3.00 5948772.05 844351.78 3000.00 10.19 31518 2909.05 2998.29 -13.61 -8.83 -13.61 10,479 4.00 3.06 594877511 844348.58 3100.00 14.14 318.16 3006.79 3096.03 -2800 8.76 -28.00 7.569 4.00 3.28 594879022 844333.88 3200.00 18.12 319.85 3102.83 3192.07 -46.19 27.75 -46.19 5949 400 3.48 5948810.88 844315.29 SVT 3215.99 18.75 320.05 3118.00 3207.24 -49.44 31.62 -49.44 5.74R 4.00 3.51 5948814.67 844311.97 330000 22.10 320.95 3196.72 3285.96 -68.07 5425 -66.07 4.99 4.00 3.66 5948836.93 644292.91 3400.00 26.09 321.72 3287.99 3377.23 -93.55 86.14 -93.55 4.199 4.00 3.83 5948868.32 644266.82 3500.00 30.08 322.31 3376.20 3485.44 -122.51 123.24 -122.51 3.68R 4.00 3.97 5948904.86 644237.16 3600.00 34.07 322.77 346092 3550.16 -15479 165.39 -15479 3.299 4.00 4.11 5948946.38 644204.08 SV7 3808.57 3441 32280 3468.00 3557.24 -157.71 169.23 -157.71 3.269 400 4.12 5948950.16 644201.09 3700.00 38.06 323.14 3541.73 363097 -190.25 212.37 -190.25 2.999 4.00 4.23 594899267 64416773 3800.00 42.06 323.45 3618.25 3707.49 -228.70 263.96 -228.70 2.756 4.00 4.34 5949043.51 64412829 3900.00 48.06 323.71 3690.10 3779.34 -269.97 319.91 -269.97 2.569 4.00 445 5949098.65 644085.96 4000.00 50.05 323.95 3756.93 3846.17 -313.86 379.95 -313.86 2.4R 4.00 4.54 5949157.83 644040.94 410000 54.05 324.15 3818.42 3907.68 -380.14 443.77 -360.14 2.28R 4.00 4.63 5949220.75 643993.45 4200.00 58.05 324.34 3874.28 3983.50 -408.59 511.08 -408.59 2.17R 400 4.72 5949287.11 643943.72 End Curve 4285.33 61.48 324.49 3917.24 4008.48 -451.47 571.02 -451.47 HS 4.00 4.79 5949348.21 643899.70 430000 61.48 324.49 3924.25 4013.49 -458.96 581.51 -458.98 HS 000 4.79 5949358.55 64389201 4400.00 61.48 324.49 3972.03 4061.27 -509.98 653.01 -509.98 HS 0.00 4.84 5949427.06 843839.83 UG4 442505 81.46 324.49 3984.00 4073.24 -52276 670.92 -522.76 HS 0.00 4.88 5949444.72 843828.51 4500.00 61.48 324.49 4019.81 4109.05 -561.01 724.52 -581.01 HS 0.00 4.89 5949497.57 643787.24 460000 61.46 32449 406760 4158.84 -61203 796.03 -812.03 HS 0.00 493 5949566.08 643734.86 4700.00 61.46 324.49 411538 4204.62 683.06 86753 -663.06 HS 0.00 4.97 5949636.59 64368248 4800.00 61.46 32449 4163.16 425240 -714.09 939.04 -714.09 HS 0.00 501 5949709.10 64363010 4900.00 81.46 32449 4210.95 4300.19 -765.11 1010.55 -785.11 HS 0.00 504 5949779.61 643577.71 5000.00 81.46 324.49 4258.73 4347.97 -818.14 1082.05 -816.14 HS 0.00 5.07 5949850.12 643525.33 UG3 504242 61.46 32449 427900 4368.24 -83778 1112.38 -837.78 HS 0.00 5.09 5949880.03 643503.11 5100.00 61.48 324.49 4306.52 4395.76 -887.16 115356 -867.16 HS 0.00 5.10 5949920.63 643472.95 5200.00 6146 32449 4354.30 4443.54 -918.19 1225.07 -918.19 HS 000 5.13 5949991.14 643420.56 5300.00 6146 324.49 440208 4491.32 -969.21 1296.57 -969.21 HS 0.00 5.16 5950061.65 643368.18 5400.00 81.46 32449 4449.87 4539.11 -1020.24 1368.08 -1020.24 HS 0.00 5.19 5950132.18 64331580 5500.00 81.46 32449 4497.65 4586.89 -1071.26 1439.58 -1071.26 HS 0.00 521 5950202.68 643263.41 5600.00 81.46 324.49 4545.43 4634.67 -1122.29 1511.09 -1122.29 HS 0.00 5.23 5950273.17 643211.03 5700.00 81.48 324.49 459322 466246 -1173.31 158260 -1173.31 HS 0.00 5.26 5950343.68 843158.65 5800.00 81.48 324.49 4641.00 4730.24 -1224.34 1654.10 -1224.34 HS 0.00 5.28 5950414.19 643106.28 5900.00 81.48 32449 4688.78 4778.02 -1275.36 1725.61 -1275.36 HS 0.00 5.30 5950484.70 843053.88 6000.00 81.48 324.49 4736.57 4825.81 -1328.39 1797.12 -1328.39 HS 0.00 5.32 5950555.21 643001.50 UG1 8030.21 61.46 324.49 4751.00 4840.24 -1341.80 1818.72 -1341.80 HS 0.00 532 5950578.51 64298567 6100.00 81.48 32449 4784.35 4873.59 -1377.41 1868.62 -1377.41 HS 0.00 5.34 5950625.72 642949.11 6200.00 61.48 32449 4832.13 4921.37 -1428.44 1940.13 -1428.44 HS 0.00 5.36 5950696.23 64289673 6300.00 61.46 32449 4879.92 4969.16 -147947 2011.64 -1479.47 HS 0.00 537 5950788.74 642844.35 6400.00 81.46 32449 4927.70 5016.94 -1530.49 2083.14 -153049 HS 0.00 5.39 5950837.25 642791.96 6500.00 81.46 32449 4975.48 506472 -1581.52 2154.85 -1581.52 HS 0.00 541 595090776 642739.58 6600.00 6146 32449 5023.27 511251 -163254 2226.15 -163254 HS 0.00 542 595097827 642687.20 6700.00 6146 324.49 5071.05 5180.29 -1683.57 2297.66 -1683.57 HS 0.00 544 5951048.77 64263481 6800.00 8146 324.49 5118.83 5208.07 -1734.59 2369.17 -1734.59 HS 0.00 5.48 5951119.28 64258243 6900.00 61.48 324.49 5166.62 5255.86 -178562 2440.67 -178562 HS 0.00 547 5951189.79 642530.05 7000.00 81.46 324.49 5214.40 5303.64 -1836.64 251218 -183664 HS 0.00 5.49 5951280.30 642477.67 7100.00 131.46 324.49 5262.18 5351.42 -1887.67 2583.89 -1887.87 HS 0.00 5.50 5951330.81 642425.28 WS2 7135.20 61.46 324.49 5279.00 5388.24 -190563 2608.85 -1905.83 HS 0.00 550 5951355.83 642406.85 7200.00 81.46 324.49 5309.97 5399.21 -1938.89 2655.19 -193889 HS 0.00 5.51 5951401.32 842372.90 7300.00 61.46 324.49 535775 5446.99 -1989.72 2726.70 -1989.72 HS 0.00 5.53 5951471.83 642320.52 7400.00 8148 324.49 5405.53 5494.77 -2040.74 2798.21 -2040.74 HS 000 5.54 5951542.34 642288.13 Curve4/100 7454.09 61.48 324.49 5431.38 5520.82 -2068.34 2836.88 -2068.34 150.11R 0.00 5.55 5951580.47 642239.80 750000 59.67 325.55 5453.87 5543.11 -2091.29 2869.67 -209129 149.59R 400 5.58 5951812.82 642216.23 7600.00 56.44 327.96 5506.83 559587 -2137.87 2940.68 -2137.87 148.319 400 560 5951682.92 642168.30 WS7 7602.47 5636 328.04 5508.00 5597.24 -2138.96 2942.43 -2138.96 148.28R 4.00 5.60 5951684.64 842187.18 7700.00 53.06 33060 556434 5653.58 -2179.60 3010.86 -2179.60 146.89 400 563 5951752.27 642125.24 7800.00 49.75 333.47 562672 5715.96 -2218.27 3079.85 -2216.27 145019 400 5.66 5951820.54 642087.25 790000 46.52 336.83 569346 5782.70 -2247.72 3147.32 -2247.72 142.89R 400 5.69 5951887.39 642054.52 CM3 792959 4558 337.63 5714.00 5803.24 -225600 316595 -2256.00 142.2R 4.00 5.70 5951906.86 64204586 8000.00 43.38 340.15 576424 585348 -2273.78 3212.95 -2273.78 140.41R 400 5.72 5951952.51 642027.20 8100.00 40.36 344.06 5836.71 5927.95 -2294.33 3276.41 -2294.33 137.479 4.00 5.74 5952015.56 64200544 8200.00 3749 34852 5916.51 600575 -2309.28 3337.40 -2309.28 134.02R 400 5.76 5952076.24 641989.33 8300.00 34.82 353.57 5997.27 6088.51 -2318.53 3395.62 -2318.53 129.949 4.00 579 5952134.27 641978.96 8400.00 32.37 359.30 6080.58 6169.82 -2322.06 345078 -2322.08 125.17R 400 581 5952189.34 641974.38 8500.00 30.23 5.80 6188.04 6255.26 -2319.84 3502.61 -2319.64 119.81R 400 5.83 5952241.21 641975.60 CM2 8518.43 29.87 7.09 8182.00 6271.24 -2318.81 3511.78 -2318.81 118.49R 400 583 5952250.40 841976.46 8600.00 28.45 13.12 6253.24 6342.48 -2311.89 3550.87 -2311.89 113.23R 4.00 5.85 5952289.61 641982.82 8700.00 27.10 21.21 6341.75 6430.99 -2298.24 359532 -2298.24 106.076 400 5.86 5952334.30 641995.42 8800.00 26.25 29.92 6431.15 6520.39 -2278.98 3635.73 -2278.96 98.27R 400 5.88 5952375.08 642013.91 890000 25.96 39.00 652098 6610.22 -2254.15 3671.93 -2254.15 90.129 4.00 590 5952411.74 642038.03 9000.00 26.24 48.08 6610.82 6700.06 -2223.92 3703.72 -2223.92 61.976 4.00 591 5952444.10 642067.64 9100.00 27.07 56.81 6700.23 878947 -2188.42 3730.95 -2188.42 74.166 4.00 593 5952472.01 642102.81 9200.00 28.40 64.92 6788.77 8878.01 -2147.83 3753.50 -2147.83 88.989 400 595 5952495.33 642142.76 9300.00 30.17 7226 6676.02 6985.26 -210234 377124 -2102.34 60.57R 400 5.96 5952513.94 642187.89 CM/ 931504 30.47 73.29 6889.00 6978.24 -2095.09 377349 -2095.09 59.688 400 596 595251632 642195.10 9400.00 32.31 78.79 6961.54 7050.78 -2052.17 3784.10 -2052.17 54.996 400 5.98 5952527.78 642237.80 9500.00 34.74 84.54 704492 7134.16 -1997.58 3792.01 -1997.58 50.19R 400 599 5952538.71 642292.23 Drilling Office 2.5.1100.0 Prudhoe Bay Unit-WOA\Y-PAD\Y-19\Y-19A\Y-19A(P7) 12/27/2011 5:00 AM Page 3 of 5 Comments MD Incl AzIm True TVDSS TVD VSEC NS EW TF DLS Directional Northing Ezu6ng (ft) r) 7) (It) (n) (It) (It) (S) p) C/1008)Difficulty Index (1tUS) (((US) 960000 3741 89.60 7125.76 7215.00 -1938.82 3794.94 -1938.82 48.1R 4.00 6.01 5952540.76 642350.92 THRZ 9695.21 4013 9388 7200.00 7289.24 -1879.26 3793.07 -1879.26 42.788 4.00 8.02 595254004 842410.50 9700.00 40.27 9406 7203.68 7292.90 -1876.18 3792.88 -1876.18 42.62R 400 6.03 5952539.89 642413.58 9800.00 43.29 98.01 727823 7367.47 -1809.96 3785.79 -1809.96 39.67R 4.00 104 5952534.09 642479.92 End Curve 9855.12 45.00 10000 7317.79 7407.03 -1772.06 3779.78 -177206 HS 4.00 6.05 5952528.80 642517.93 9900.00 45.00 100.00 7349.52 7438.76 -1740.80 377427 -174080 HS 0.00 8.05 5952523.89 642549.28 10000.00 45.00 100.00 7420.23 7509.47 -1671.17 3781.99 -1671.17 HS 0.00 8.06 5952512.95 642819.13 LCU 10025.12 45.00 100.00 7438.00 7527.24 -1653.67 3758.90 -1653.67 HS 0.00 6.08 5952510.21 642636.88 TKHG 10050.58 45.00 100.00 7456.00 7545.24 -1635.94 3755.78 -1635.94 HS 0.00 6.06 5952507.42 642654.47 10100.00 45.00 100.00 7490.94 7580.18 -1601.53 3749.71 -1601.53 HS 0.00 8.07 595250201 642688.99 10200.00 45.00 100.00 756166 7850.90 -1531.89 3737.43 -1531.69 HS 0.00 6.07 5952491.07 642758.84 10300.00 45.00 100.00 7832.37 7721.61 -1462.26 3725.15 -1482.26 HS 0.00 608 5952480.13 642828.89 10400.00 45.00 100.00 7703.08 7792.32 -1392.82 3712.87 -1392.62 HS 0.00 8.08 5952469.19 642898.55 10500.00 45.00 10000 7773.79 7863.03 -1322.98 3700.59 -1322.98 HS 0.00 8.09 595245825 642988.40 10800.00 45.00 100.00 7844.50 7933.74 -1253.35 3686.31 -1253.35 HS 0.00 8.10 5952447.31 643038.26 TJF 10643.14 45.00 100.00 7575.00 7984.24 -1223.31 3683.02 -1223.31 HS 0.00 8.10 5952442.59 643068 39 10700.00 45.00 100.00 7915.21 8004.45 -1183.71 3878.03 -1183.71 HS 0.00 8.10 5952436.37 643108.11 TJE 10795.57 45.00 100.00 7983.00 8072.24 -1116.95 3664.26 -1116.95 HS 0.00 8.11 5952425.88 843175.08 10800.00 45.00 100.00 7985.92 8075.18 -1114.07 3663.76 -111407 HS 0.00 6.11 5952425.43 843177.98 10900.00 45.00 100.00 8056.63 8145.87 -1044.44 3651.48 -1044.44 HS 0.00 6.11 595241449 843247.82 11000.00 45.00 100.00 8127.34 8218.58 -974.80 3639.20 -974.80 HS 0.00 6.12 5952403.55 843317.87 11100.00 4500 100.00 8198.05 8287.29 -905.16 3626.92 -905.16 HS 0.00 6.12 5952392.61 843387.52 TJD 11198.92 45.00 100.00 8268.00 8357.24 -83628 3614.77 -836.28 HS 0.00 6.13 5952381.79 643456.62 11200.00 45.00 100.00 8268.76 8358.00 -835.53 3614.64 -83553 HS 0.00 6.13 5952381.67 843457.38 11300.00 45.00 100.00 833947 8428.71 -765.89 3602.38 -785.89 HS 0.00 8.14 595237073 643527.23 11400.00 4500 100.00 8410.18 849142 -696.26 359008 -696.26 HS 0.00 114 5952359.79 643597.08 TJC 11454.89 45.00 100.00 8449.00 8538.24 -658.03 3583.34 -65803 HS 0.00 8.14 5952353.79 64363543 11500.00 4500 100.00 8480.89 8570.13 626.62 3577.80 -62662 HS 000 615 5952348.85 643666.94 11600.00 45.00 100.00 8551.80 8640.84 -556.98 356553 -550.98 HS 0.00 6.15 5952337.91 843738.79 TJB 11830.26 4500 100.00 8573.00 8662.24 -535.91 3561.81 535.91 HS 0.00 6.15 5952334.60 643757.93 1170000 45.00 100.00 862232 8711.56 -487.35 3553.25 -487.35 HS 0.00 8.18 5952326.97 843808.65 TJA 11738.32 45.00 100.00 8648.00 8737.24 -462.05 3548.79 -462.05 HS 0.00 6.16 5952323.00 643832.02 11800.00 4500 100.00 8693.03 878227 -417.71 3540.97 -417.71 HS 0.00 8.18 5952316.03 843878.50 7'Casirg 19850.54 45.00 100.00 872878 8818.00 -382.52 3534.76 -382.52 HS 0.00 8.16 5952310.50 643911.80 TSGR 11850.87 4500 100.00 8729.00 8818.24 -382.28 3534.72 -38228 HS 0.00 6.18 5952310.46 843912.04 719A-TGT1 1185512 45.00 100.00 8732.00 8821.24 -379.33 353420 -379.33 HS 0.00 6.16 5952310.00 843915.00 Curve 15/100 1186012 4500 100.00 873554 8824.78 -37585 3533.59 -37585 12.631. 0.00 8.16 5952309.45 64391649 TSHU 11882.85 4830 99.01 8751.00 8840.24 -359.69 3530.89 -359.69 11.951. 1500 8.17 595230706 843934.70 1190000 50.85 98.32 876225 8851.49 348.63 3528.90 -346.63 11.51. 1500 8.18 595230532 643947.79 1200000 6560 95.07 881477 8904.01 -282.43 3518.21 -262.43 9.771. 15.00 8.22 595229725 844032.18 TSAD 12048.50 72.77 93.78 883200 8921.24 -217.25 3515.73 -217.25 9.311. 1500 6.24 5952294.64 844077.39 12100.00 80.40 92.52 8843.94 8933.18 -167.28 3512.99 -167.28 9.021. 15.00 8.28 5952292.86 844127.40 Invert in upper Z4 12148.25 8755 91.38 8849.00 8938.24 -11935 3511.36 -11935 8.91. 1500 6.28 595229215 844175.35 12200.00 95.22 90.18 8847.75 8938.99 6766 3510.85 -67.66 1931. 15.00 8.31 5952292.43 844227.04 TSAD 12281.08 107.23 88,22 883200 8921.24 11.71 3511.73 11.71 9.311. 15.00 8.34 5952295.04 844308.37 12300.00 110.03 87.73 8825.96 8915.20 29.63 3512.38 29.63 9.471. 15.00 8.34 5952296.01 64432427 End Curve 12303.82 110.59 87.63 8824.63 8913.87 33.21 3512.51 33.21 HS 15.00 8.35 5952296.23 844327.85 12400.00 110.59 8763 8790.80 8880.04 123.16 3518.23 123.16 HS 0.00 8.35 5952301.07 644417.71 Curve 15/100 12488.12 110.59 87.83 875901 8849.05 205.59 3519.84 205.59 168.59R 000 6.36 5952306.66 644500.04 12500.00 108.85 88.00 8755.80 884504 218.76 3520.07 216.76 166.72R 15.00 6.37 5952307.30 844511.20 TSHU 12515.80 106.52 88,49 8751.00 8840.24 231.81 3520.53 231.81 168.87R 15.00 6.37 5952308.05 644526.24 1260000 94.12 9091 8735.94 8825.18 31447 3520.93 314.47 189.3R 1500 8.40 5952310.04 644608.87 Y19A-TGT2 12821.15 91.00 91.50 873500 8824.24 335.60 352049 335.60 183.32L 15.00 6.41 5952310.00 644630.00 End Curve 12656.66 8964 91.09 8734.80 8824.04 371.09 3519.68 371.09 HS 4.00 6.42 5952309.88 844865.50 1270000 8964 91.09 873507 8824.31 414.42 3518.86 414.42 HS 0.00 6.42 5952309.88 644708.84 12800.00 89.64 91 09 873570 8824.94 514.40 3516.95 51440 HS 0.00 6.43 5952309_89 644808.03 12900.00 89.64 91.09 8736.33 8825.57 61438 3515.05 614.38 HS 0.00 6.44 5952309.91 644908.82 13000.00 89.64 91.09 8736.96 8826.20 714.36 3513.14 714.36 HS 0.00 6.45 5952309.92 645008.61 13100.00 89.64 91.09 8737.59 8828.83 814.34 3511.23 81434 HS 0.00 6.46 5952309.93 845108.80 13200.00 89.64 91.09 8735.22 8827.46 914.32 3509.33 914.32 HS 0.00 8.47 5952309.94 845208.79 13300.00 89.64 91.09 8738.85 8828.09 1014.30 3507.42 1014.30 HS 0.00 8.48 5952309.95 845308.78 13400.00 89.64 91.09 8739.48 8828.72 1114.28 3505.51 1114.28 HS 000 6.48 5952309.98 845408.77 1350000 89.64 91.09 8740.11 8829.35 1214.26 3503.61 1214.26 HS 0.00 8.49 5952309.97 645508.76 13600.00 89.64 91.09 874074 8829.98 131424 3501.70 1314.24 HS 0.00 6.50 5952309.98 645608.75 Curve 4/100 13817.26 89.64 91.09 8740.84 8830.08 1331_49 3501.37 1331.49 0.31. 0.00 8.50 5952309.99 845626.00 Y19A-TGT3 13876.27 92.00 91.08 8740.00 8829.24 1390.49 3500.25 1390.49 3.181. 4.00 8.51 5952310.00 645885.00 13700.00 92.95 9103 8738.98 882822 1414.19 3499.82 141419 3.18L 4.00 8.52 5952310.02 645708.71 13800.00 96.94 90.80 8730.36 8819.60 1513.79 3498.23 1513.79 3.21. 4.00 8.53 5952310.34 645808.31 End Curve 13889.26 100.51 9060 8716.82 8806.06 1601.99 3497.14 1601.99 HS 4.00 8.54 5952310.95 645896.51 13900.00 100.51 90.60 8714.86 8804.10 1612.55 349703 161255 HS 0.00 6,54 5952311.04 645907.07 Curve 4/100 13928.44 100.51 90.60 8710.04 8799.28 1638.55 3496.76 1638.55 177.28R 0.00 6.55 5952311.26 645933.06 14000.00 97.57 90.74 869849 8787.73 1711.18 349591 1711.18 177.29R 4.00 6.56 5952311.81 646005.70 14100.00 93.57 90.93 8688.79 8778.03 1810.68 3494.45 1810.68 177.31R 400 6.57 5952312.26 846105.20 Y19A-TGT4 14189.39 90.00 91.10 8688.00 8775.24 190000 3492.87 190000 HS 4.00 6.58 5952312.39 648194.52 14200.00 90.00 91.10 868600 877524 1910_61 349287 1910.61 HS 0.00 8.59 595231239 848205.13 14300.00 90.00 91.10 8686.00 877524 2010.59 349075 2010.59 HS 0.00 8.59 5952312.39 846305.12 Curve 4/100 14339.39 90.00 91.10 8688.00 8775.24 2049_97 3489.99 2069.97 16.04R 0.00 8.60 5952312.39 84634451 End Curve 14386.28 91.80 9162 8685.26 8774.50 2098.84 34118.88 2096.84 HS 400 6.60 595231217 646391.39 14400.00 91.80 9162 868483 8774.07 2110.55 348849 2110.55 HS 0.00 8.60 595231205 846405.10 14500.00 91.80 91.62 8681.69 8770.93 2210.48 3485.67 2210.48 HS 0.00 6.81 5952311.14 646505.04 Curve 4/100 14594.27 91.80 91.62 8678.72 6787.96 230464 3483.01 2304.64 169,981. 0.00 8.82 5952310.29 646599.25 14600.00 91.58 91.58 8678.55 8787.79 2310.37 3482.85 2310.37 169,98L 4.00 8.82 5952310.24 646604.98 Y19A-TGT5 14640.03 90.00 91.30 8678.00 6787.24 2350.38 3481.84 2350.38 167.341. 4.00 6.83 5952310.00 846845.00 End Curve 14883.61 89.08 91.09 8678.19 8787.43 2373.95 3481.35 2373.95 HS 4.00 6.83 5952309.96 848888.57 14700.00 89.08 91.09 8678.77 8788.01 2410.33 3480.88 2410.33 HS 000 6.83 5952309.96 848704.98 14800.00 89.08 91.09 8680.38 8769.62 2510.30 3478.75 2510.30 HS 0.00 6.84 5952309.97 848804.94 14900.00 89.08 91.09 8681.99 8771.23 2610.27 3476.84 2610.27 HS 000 6.65 5952309.98 846904.91 15000.00 89.08 91.09 8683.59 8772.83 271024 3474.93 2710.24 HS 0.00 6.65 5952309.99 647004.89 Curve 4/100 15079.61 8908 91.09 8684.87 8774.11 2789.83 3473.41 2789.83 2.26R 0.00 6.66 5952310.00 647084.49 V19A-TGT6 1509012 89.50 91.11 868500 8774.24 2800.34 3473.21 2800.34 2.38R 4.00 6.68 5952310.00 647095.00 End Curve 15098.21 89.82 91.12 8685.05 8774.29 2808.42 3473.05 2808.42 HS 4.00 6.66 5952310.00 647103.09 1510000 89.82 91.12 868505 8774.29 281021 3473.02 2810.21 HS 0.00 6.86 5952310.00 847104.87 15200.00 89.82 91.12 8685.36 8774.80 291019 3471.08 2910.19 HS 0.00 8.67 5952309.95 647204.87 15300.00 89.82 91.12 868567 8774.91 3010.17 3489.10 3010.17 HS 0.00 6.68 5952309.91 647304.86 15400.00 8982 91.12 868598 8775.22 3110.15 3487.14 3110.15 HS 0.00 6.89 5952309.87 847404.85 15500.00 89.82 91.12 8686.29 8775.53 3210.13 3465.18 3210.13 HS 0.00 6.69 5952309.83 647504.84 15600.00 89.82 91.12 8888.60 877584 3310.11 3483.22 3310.11 HS 0.00 6.70 595230978 647804.83 Drilling Office 2.5.1100.0 Prudhoe Bay Unit-WOA\Y-PAD\Y-19\Y-19A\Y-19A(P7) 12/27/2011 5:00 AM Page 4 of 5 Comments MD Incl Atm True TVDSS ND VSEC NS EW TF DLS Directional Northing Eas8ng (ft) C) (°) (ft) (ft) (ft) (ft) (It) (9 (°/100ft)Difficulty Index (ftUS) (1tUS) 15700 00 89.82 91.12 8686.90 8776.14 3410.09 3461.28 3410.09 HS 0.00 6.71 595230974 647704.82 Curve 4/100 15716.75 89.82 91.12 8686.96 8776.20 3426.84 3460.93 3426.84 81 06L 0.00 6.71 5952309.73 647721.58 Y19A-TGT7_TD 15745 18 90.00 90.00 8687.00 8776.24 3455.27 3460 65 3455.27 4.00 6.71 5952310.00 647750.00 Survey Type: De(Plan Legal Description: Northing(V) Eastino(XI Surface:3816.5 FSL 455.6 FEL 033 T11 N 913E UM 5948784 000 644362 000 8190-191729/8HL:1996 FSL 2273 FEL 27 T 11 N R13EUM 5952310.000 647750 000 Drilling Office 2.5.1100.0 Prudhoe Bay Unit-WOA\Y-PAD\Y-19W-19A\Y-19A(P7) 12/27/2011 5:00 AM Page 5 of 5 by0 hl m r r Sc u be ge VVELL Y-19 (P7) FIELD STRUCTURE Prudhoe Bay Unit-WOA Y-PAD Magnetic Parameters Surface Location NAM]Alaska State Plane,Zona 04 US Feet Micelineoas Motley. BGGM 2011 09 80.992• Date: June 01,2012 Lat N 7015 3072 Norlbi08 5948784.00BUS Grd Cony:1.119885148• Sbt 7-19 TVG RN: RTE(89.24I1 above MSL) Mag Dec: 20.903• FS 571350.6n1 Lon: V41413 49 57.419 Einem): 644.313a 00 BUS Scale Fact 0.93992357 Pin: 7-192('7) Snit'Date:November 02.2011 -2000 -1000 0 1000 2000 3000 6000 > < 6000 5000 5000 r Casin Y19A-TGT1 4000 OA•GYfYA Curve 15/100 Y19A-TGT4 Curve 6/100 4000 Curve 41100 Y19ATGT6 _� Curve 4/100WitilimmillIMIMY-192(P7) • End Curve End curve 11.1111111111111.namm1111.11111111111111.11111 MEM EMI Y19A-deo po A Curve 4/100 Curve 4/100 A A Curve 15/100 1(19A-TGT2 Carve 4/100 Z 3000 5749A-Tara YI9A SGT3 219A-TGT7 TD 3000 Etta• End Curve End Curve Curve Curve 4/100 End Curve 0 0 II -19 from compass 0) 2000 2000 in V V V 1000 1000 End Curve SCM 9/17/98 GCTG 0 0 • Tie-In Survey op of Whipstock Curve 4/100 Base of Whipstock -1000 -1000 -2000 -1000 0 1000 2000 3000 «< W Scale=1:1000(ft) E >>> by • Schlumberger WELL Y-19A (P7) FIELD STRUCTURE Prudhoe Bay Unit-WOA Y-PAD Magneto Parameters Surface Localon NA1327 Alaska State Plane,Zone 04,US Feet Miscellaneous Model'. BGGM 2011 Dip: 80.992• Dab: June 01,2012 Let N 7016 3072 Northing. 5948784.008US Gott Cony:1.09885148' Sot: V-19 TVD Rat 810)89246 above MSL) Mag Dec: 2.903' FS'. 5785081 Lon W 1484957.419 Easeng: 64439200MJS Scale Fact 098922387 Plan: V-19A(P7) 5ny Data:November 02,2011 -2400 -1200 0 1200 2400 3600 0 0 S8H 9/17/88 GCTG 1200 1200 2400 Top•of Whipsteek• s 2400 Base of Whipstock Tien Survey Curve 4/100 3600 -..-••-••-••--._.-••_.._.._.._.._.._.._.._.r.._.._.._.._.._801•.• :-••-••-••-••-.._..-••-•---.._.._.._.._.._.._.._.._?_.._.._.._.._.._.._.._.._._... 3600 End Curve O CD II 4800 _Curve 41100 ._.. a_.�_._.._.._._.._.._.._.. ._.._.._.._._.._.._.._.._.._.._.._.._--.._.._.._.._.._.._.._.._._.._.._.._.._.._.._.._.._._... _.._.._.._.._.._._.._ a�{.._.._.._.._.._._.._.._.._. .._.._.._.._._.._.._.._.._.._.._.._..—_—.._.._.._.._.._.._.._.._._.._.._.._.._.._.._.._.._._... 6000 6000 7200 7200 LCU .r.a NG........r.rr.rr.r al .rr.re.e e.ee.SS0SC.ee.Se.ee.ee...ee.ee.M.ee.ea_ae_ee_aa.o.ae.u.u.aa....u.u.u.e.ee.ee.ee.ee.ee.ee.ee.ee.ono. End Curve Curve 4/100 Y19A-TGT0 Y19A_TGTi 8400 �,D.._.._.._.._._.._.._.._.._.._.._.._.. _.._.._.._.._.._._.._.._.._.._.._.._.._..___.._ _.._._ _.._.._.._.._.._.._.._.._._... 8400 ,A4 Y111A-TGT2 End CurveGouelit _ _ _ End Curve Y-19A(P7)_ T.1C.._.._.._..—• .._.._.._.._.._.._.._.. _._.._.._.._ .Curve islel00_.. ._.._.._.._.._..—_—.._.._ _._. .._.._. _.._.._.._.._.._.._._ _._.. �eL� -f .eeeee.u�^e•.e.u.u.u.u.n.rr_ee.ee E11m.. . rue urr.rr . .. t. _:r_a e.0 r.rr.rr....r u■ .ee.ee Serve 15/100 ' Sora•e.ee.«.e e...rr.rr Curve 4/100tuve 4/ • • • •mum T-19 from compass Y19A-TGT1 Invertin upp¢r Z Curve 41100 End Curve 0 Bold Curve Casing 7" End C¢rve Curve 4/100 End Curve 919A-TGT3 :Y19A-TGT 19A-TGT7_TD -2400 -1200 0 1200 2400 3600 Vertical Section(ft)Azim=90°Scale=1:1200(ft) Origin=0 N/-S,0 E/-V 47- 45— 42- 40- 37— 35— 26/Y26 Y-1' -12 32— 30— c u-> c27- 0 is co ow 25— m U 22- 0 12/Y-12 U20— Y-19/Y-19 17- 15- 12- 10— 7— 5— Project: Prudhoe Bay Site: PB Y Pad Well: Y-19 Wellbore: Plan Y-19A 2— Design: Y-19A Plan#7 0 19 I I l I ! I I I I 4 I ! I 2750 2800 2850 2900 2950 3000 3050 3100 3150 3200 3250 3300 3350 3400 3450 Measured Depth (100 Win) BPPASSPORT Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Y-19-Slot 19 Project: Prudhoe Bay ND Reference: Y19A Plan @ 89.24ft(Doyon 25) Reference Site: PB Y Pad MD Reference: Y19A Plan @ 89.24ft(Doyon 25) Site Error: 0.00ft North Reference: True Reference Well: Y-19 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Plan Y-19A Database: EDM.16-ANC Prod-WH24P Reference Design: Y-19A Plan#7 Offset ND Reference: Offset Datum Reference Y-19A Plan#7 Filter type: GLOBAL FILTER APPLIED:All wellpaths within 200'+100/1000 of refer Interpolation Method: MD Interval 25.00ft Error Model: ISCWSA Depth Range: 2,743.59 to 15,745.18ft Scan Method: Tray.Cylinder North Results Limited by: Maximum center-center distance of 1.770.57ft Error Surface: Elliptical Conic Survey Tool Program Date 12/27/2011 From To (ft) (ft) Survey(Wellbore) Tool Name Description 46.79 2,743.59 1 :Schlumberger GCT multishot(Y-19) GCT-MS Schlumberger GCT multishot 2,743.59 3.400.00 Y-19A Plan#7(Plan Y-19A) GYD-GC-MS Gyrodata gyrocompassing mis 3.400.00 4,900.00 Y-19A Plan#7(Plan Y-19A) MWD MWD-Standard 3.400.00 11.850.00 Y-19A Plan#7(Plan Y-19A) MWD+IFR MWD+IFR correction 11,850.00 13.350.00 Y-19A Plan#7(Plan Y-19A) MWD MWD-Standard 11,850.00 15.745.18 Y-19A Plan#7(Plan Y-19A) MWD+IFR MWD+IFR correction 12127/2011 6:12:12AM Page 2 of 5 COMPASS 2003.16 Build 73 • BPPASSPORT Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Y-19-Slot 19 Project: Prudhoe Bay ND Reference: Y19A Plan @ 89.24ft(Doyon 25) Reference Site: PB Y Pad MD Reference: Y19A Plan @ 89.24ft(Doyon 25) Site Error: ODOR North Reference: True Reference Well: Y-19 Survey Calculation Method: Minimum Curvature Well Error: O.00ft Output errors are at 1.00 sigma Reference Wellbore Plan Y-19A Database: EDM.16-ANC Prod-WH24P Reference Design: Y-19A Pian#7 Offset ND Reference: Offset Datum Summary Reference Offset Centre to No-Go Allowable Measured Measured Centre Distance Deviation Warning Site Name Depth Depth Distance (ft) from Plan Offset Well-Wellbore-Design (ft) (ft) (ft) (ft) PB A Pad A-26-A-26L1-A-26L1 Out of range PB Y Pad Y-01 -NJ-01B-Plan#9 2,750.00 2,750.00 1.261.61 46.50 1215.16 Pass-Major Risk Y-01-Y-01 B-Y-01 B 2,750.00 2,750.00 1.261.61 46.50 1.215.16 Pass-Major Risk Y-02-Y-02-Y-02 14,665.09 10,125.00 468.04 411.95 58.19 Pass-Major Risk Y-02-Y-02A-Plan#6 15.132.69 10,850.00 133.77 425.27 -223.19 FAIL-Major Risk Y-02-Y-02A-Y-02A 15.127.26 10.825.00 177.83 429.83 -178.42 FAIL-Major Risk Y-02-Y-02APB1 -Y-02APB1 15,114.24 10,824.00 160.82 429.49 -220.15 FAIL-Major Risk Y-03-Y-03A-Y-03A 13,696.72 11,825.00 149.36 260.85 -55.48 FAIL-Major Risk Y-03-Y-03A-Y-03A wp06 13,274.95 12,600.00 113.22 295.89 -68.12 FAIL-Major Risk Y-04-Y-04-Y-04 11,526.74 9.800.00 66.77 614.26 -547.32 FAIL-Major Risk Y-06-Y-06A-Y-06A 2,750.00 2,750.00 708.88 45.16 663.76 Pass-Major Risk Y-07-Y-07A-Y-07A 2,786.29 2.850.00 517.88 45.37 472.57 Pass-Major Risk Y-07-Y-07APB1-Y-07APB1 2.786.29 2.850.00 517.88 45.26 472.68 Pass-Major Risk Y-09-Y-09-Y-09 2,750.00 2,750.00 356.89 45.97 310.93 Pass-Major Risk Y-09-Y-09A-Y-09A 2.749.68 2,750.00 356.89 45.86 311.04 Pass-Major Risk Y-09-Y-09AL1-Y-09AL1 2,749.68 2.750.00 356.89 45.71 311.19 Pass-Major Risk Y-09-Y-09AL1-01-Y-09AL1-01 2,749.68 2,750.00 356.89 45.71 311.19 Pass-Major Risk Y-09-Y-09APB1-Y-09APB1 2,749.68 2.750.00 356.89 45.97 310.94 Pass-Major Risk Y-10-Plan Y-10B-Y-10B(P8) 2,748.26 2,750.00 260.78 45.91 214.87 Pass-Major Risk Y-10-Y-10-Y-10 2,750.00 2,750.00 260.80 45.73 215.07 Pass-Major Risk Y-10-Y-10A-Y-10A 2.750.00 2,750.00 260.80 45.73 215.07 Pass-Major Risk Y-11-Y-11-Y-11 2,750.00 2,750.00 130.14 45.60 84.58 Pass-Major Risk Y-11-Y-11A-Y-11A 2,750.00 2,750.00 130.14 45.60 84.58 Pass-Major Risk Y-11-Y-11B-Y-11 B 2,752.97 2,750.00 130.12 45.63 84.53 Pass-Major Risk Y-11-Y-11BPB1 -Y-11 BPB1 2,752.97 2,750.00 130.12 45.63 84.53 Pass-Major Risk Y-11-Y-11C-Y-11C 2,757.07 2,750.00 130.12 45.67 84.49 Pass-Major Risk Y-11_DIMS-Y-11-Y-11 Out of range Y-11_DIMS-Y-11A-Y-11A Out of range Y-11_DIMS-Y-11B-Y-11B Out of range Y-11_DIMS-Y-11 BPB1-Y-11 BPB1 Out of range Y-11_DIMS-Y-11 C-Y-11 C Out of range Y-12-Y-12-Y-12 2.752.99 2,750.00 21.61 45.79 -24.12 FAIL-Major Risk Y-13-Y-13-Y-13 3,114.46 3,100.00 64.34 46.42 18.19 Pass-Major Risk Y-15-Y-15-Y-15 15,744.56 8,850.00 1,039.15 579.49 898.24 Pass-Major Risk Y-15-Y-15A-Plan#102 15.744.56 8,850.00 1,039.15 579.49 898.24 Pass-Major Risk Y-15-Y-15A-Y-15A 15,744.56 8,850.00 1,039.15 579.49 898.24 Pass-Major Risk Y-17-Y-17-Y-17 13.380.34 9,550.00 1,288.94 245.54 1,057.00 Pass-Major Risk Y-17-Y-17A-Y-17A 13,543.76 10.125.00 657.57 233.19 431.91 Pass-Major Risk Y-17-Y-17B-Plan#11 13,566.73 10.075.00 666.53 233.59 436.53 Pass-Major Risk Y-17-Y-17B-Y-17B 13,555.12 10,050.00 675.47 233.36 444.68 Pass-Major Risk Y-19-Y-19-Y-19 2,758.84 2,750.00 0.11 1.07 -0.96 FAIL-Major Risk Y-20-Y-20-Y-20 2,746.57 3,150.00 1,169.67 76.17 1,102.37 Pass-Major Risk Y-20-Y-20A-Y-20A 2,773.45 3,150.00 1,177.23 76.77 1,109.17 Pass-Major Risk Y-20-Y-20AL1 -Y-20AL1 2,773.45 3,150.00 1,177.23 76.33 1,109.61 Pass-Major Risk Y-20-Y-20AL2-Y-20AL2 2.773.45 3,150.00 1,177.23 76.33 1,109.61 Pass-Major Risk Y-20-Y-20AL2PB1-Y-20AL2PB1 2,773.45 3,150.00 1,177.23 76.77 1,109.17 Pass-Major Risk Y-20_DO NOT USE-Y-20-Y-20 2,746.57 3.150.00 1.169.67 76.17 1,102.37 Pass-Major Risk Y-20_DO NOT USE-Y-20A-Y-20A 2,773.45 3,150.00 1,177.23 76.50 1.109.44 Pass-Major Risk Y-20_DO NOT USE-Y-20AL1 -Y-20AL1 2,773.45 3,150.00 1,177.23 76.33 1.109.61 Pass-Major Risk Y-20_DO NOT USE-Y-20AL2-Y-20AL2 2,773.45 3,150.00 1,177.23 76.33 1,109.61 Pass-Major Risk Y-20 DO NOT USE-Y-20AL2PB1 -Y-20AL2PB1 2,773.45 3,150.00 1,177.23 76.50 1,109.44 Pass-Major Risk 12/27/2011 6:12:12AM Page 3 of 5 COMPASS 2003.16 Build 73 • BPPASSPORT Anticollision Report Company: North America-ALASKA-BP Local Co-ordinate Reference: Well Y-19-Slot 19 Project: Prudhoe Bay TVD Reference: Y19A Plan @ 89.24ft(Doyon 25) Reference Site: PB Y Pad MD Reference: Y19A Plan @ 89.24ft(Doyon 25) Site Error: 0.00ft North Reference: True Reference Well: Y-19 Survey Calculation Method: Minimum Curvature Well Error: 0.00ft Output errors are at 1.00 sigma Reference Wellbore Plan Y-19A Database: EDM.16-ANC Prod-WH24P Reference Design: Y-19A Plan#7 Offset TVD Reference: Offset Datum Summary Reference Offset Centre to No-Go Allowable Measured Measured Centre Distance Deviation Warning Site Name Depth Depth Distance (ft) from Plan Offset Well-Wellbore-Design (ft) (ft) (ft) (ft) PB Y Pad Y-21-Y-21-Y-21 2,753.78 2,750.00 217.98 47.00 170.98 Pass-Major Risk Y-21A-Y-21A-Y-21 A 2.753.78 2.750.00 217.98 47.00 170.98 Pass-Major Risk Y-22-Y-22-Y-22 2,787.30 3.050.00 819.72 71.54 753.83 Pass-Major Risk Y-22-Y-22A-Y-22A 2,787.30 3.050.00 819.72 71.54 753.83 Pass-Major Risk Y-23-Y-23-Y-23 5.787.31 5,500.00 110.51 157.67 -45.97 FAIL-Major Risk Y-23-Y-23A-Y-23A 5.787.31 5.500.00 110.51 157.67 -45.97 FAIL-Major Risk Y-23-Y-23APB1 -Y-23APB1 5,787.31 5,500.00 110.51 157.67 -45.97 FAIL-Major Risk Y-23-Y-23APB2-Y-23APB2 5.787.31 5,500.00 110.51 157.67 -45.97 FAIL-Major Risk Y-23-Y-23B-Y-23B 5,796.24 5.500.00 111.38 158.14 -46.00 FAIL-Major Risk Y-25-Plan Y-25B-Y-25(P12) 3,376.47 3.475.00 247.51 51.87 197.22 Pass-Major Risk Y-25-Y-25-Y-25 2,755.82 2,750.00 288.89 44.63 244.26 Pass-Major Risk Y-25-Y-25A-Y-25A 2,755.82 2,750.00 288.89 44.63 244.26 Pass-Major Risk Y-26-Y-26-Y-26 3,081.86 3,075.00 27.85 50.47 -22.55 FAIL-Major Risk Y-26-Y-26A-Y-26A 3.081.86 3.075.00 27.85 50.47 -22.55 FAIL-Major Risk Y-26_DIMS-Y-26-Y-26 Out of range Y-26_DIMS-Y-26A-Y-26A Out of range Y-27-Y-27-Y-27 2,745.86 2,900.00 697.70 69.54 632.14 Pass-Major Risk Y-29-Y-29-Y-29 2,749.14 2.750.00 396.37 41.91 354.46 Pass-Major Risk Y-29A-Y-29A-Y-29A 2,749.14 2.750.00 396.37 41.91 354.46 Pass-Major Risk Y-33-Y-33-Y-33 10,490.16 9,425.00 150.05 258.79 -107.97 FAIL-Major Risk Y-37-Y-37-Y-37 2,747.74 2,775.00 371.33 51.14 325.70 Pass-Major Risk Y-37-Y-37A-Y-37A 2,747.74 2,775.00 371.33 51.20 325.65 Pass-Major Risk Y-37-Y-37APB1 -Y-37APB1 2,747.74 2,775.00 371.33 51.15 325.69 Pass-Major Risk Y-37_DIMS-Y-37-Y-37 Out of range Y-37_DIMS-Y-37A-Y-37A PB1 Out of range Y-37_DIMS-Y-37APB1-Y-37A PB2 Out of range Y-37_DIMS-Y-37APB2-Y-37A Out of range 12/27/2011 6:12:12AM Page 4 of 5 COMPASS 2003.16 Build 73 Project: Prudhoe Bay Site: PB Y Pad Well: Y-19 Wellbore: Plan Y 19A Design: Y-19A Plan#7 Oft to To Scan interval 25 ft Scale 1 : 50 Minor risks applied as per sum report 0 175 \ / 30 150 44W) 404$4404011 - ,� :tea �i+�F '� it ''41 - f: 1): �••�ii- laa 300 I a7,r 4mi 60 14110f4frifY"yr-At 44b � li � `4�i r'•1if►itiN •' 5157 75 /,"410i -5,v _.-- ok -1"40+.1/ f.-, -v--el vilet4;047.0.7iNi - ,/ ,, 4 — : ."i.::4'i .41047,' - 15 0 , �►• t• �/f .ice —• , rj %!j >gyr•3(�r 'I�i!� 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CASA .*:7. 39 � r 3F43 ;� �%� ��\ �� \ / 3655 r1•, q��. 4'.C• s� .:x29 6r 3697 421 1145f) '��: 368 ?la•+ a1a5 - ir-,-' as-Z--_ 33 , NNi► '11 1.-1-12/Y-12 r �� / 1 1 737 ' 3465 ,gym, a `' f�� ' "4,-. 38 .i Ji 4V1y/A a0 Y;: ua -f� • 3392 _,LA 1\`� _ 6L.L 104 .`� -S_ 150 l.` ,��e Y-19/Y-19 3307 3412' ^`..r A.• 210 r���'' 150 *1.- r . .. 3432 r -1=1a/ " - - _ 1175 Y-26/Y-26A 180 Travelling Cylinder Azimuth(TFO+AZI)[0]vs Centre to Centre Separation[50 ftrn] Land Administration System Page 1 of 1 Alaska DNR Case Summary File Type:ADL File Number: 28287 See Township,Range,Section and AcreageYes No New Search File: ADL 28287 maP Search for Status Plat Updates As of 02/10/201.2 Customer: 000107377 BP EXPLORATION(ALASKA)INC PO BOX 196612/900 E.BENSON BL ATTN:LAND MANAGER-ALASKA ANCHORAGE AK 995196612 Case Type:784 OIL&GAS LEASE.COMP DNR Unit: 780 OIL AND GAS File Location:DOG DIV OIL AND GAS Case Status:35 ISSUED Status Date: 08/09/1965 Total Acres: 2560.000 Date Initiated:05/28/1965 Office of Primary Responsibility:DOG DIV OIL AND GAS Last Transaction Date:12/04/2006 Case Subtype: NS NORTH SLOPE Last Transaction:AA-NRB ASSIGNMENT APPROVED Meridian: U Township: osN Range: 013E Section: 27 Section Acres:64o Search Plats Meridian: U Township: olN Range: 013E Section: 28 Section Acres:640 Meridian: U Township: oiN Range: 013E Section: 33 Section Acres:64o Meridian: U Township: ouN Range: o13E Section: 34 Section Acres:640 Legal Description 05-28-1965***SALE NOTICE LEGAL DESCRIPTION*** C14-98 Ti1N-1213E-UM 27,28,33,34 2560.00 End of Case Summary Department of Natural Resources 550 W.7th Ave,Suite 1260,Anchorage,AK 99501-3557 Phone:907-269-8400 Fax 907-269-8901 TTY 907-269-8411 State of Alaska I l©2010 1 1 Webmaster http://dnr.alaska.gov/proj ects/1as/Case_Summary.cfm?FileType=ADL&FileNumber=2828... 2/10/2012 OVERSIZED DOCUMENT INSERT This file contains one or more oversized documents. These materials may be found in the original hard file or check the parent folder to view it in digital format. TRANSMITTAL LETTER CHECKLIST WELL NAME 'e/ y /9/49 PTD# o?/o? ✓ Development Service Exploratory Stratigraphic Test Non-Conventional Well FIELD: �,Gs!/LL4IOE7.2./ POOL: �,Cw.D,,,eoe' i'f4/O/G Check Box for Appropriate Letter/Paragraphs to be Included in Transmittal Letter CHECK ADD-ONS WHAT (OPTIONS) TEXT FOR APPROVAL LETTER APPLIES MULTI LATERAL The permit is for a new wellbore segment of existing well (If last two digits in Permit No. ,API No. 50- - - API number are between 60-69) Production should continue to be reported as a function of the original API number stated above. PILOT HOLE In accordance with 20 AAC 25.005(f), all records, data and logs acquired for the pilot hole must be clearly differentiated in both well name ( PH) and API number (50- - - ) from records, data and logs acquired for well SPACING The permit is approved subject to full compliance with 20 AAC EXCEPTION 25.055. Approval to produce/inject is contingent upon issuance of a conservation order approving a spacing exception. assumes the liability of any protest to the spacing exception that may occur. DRY DITCH All dry ditch sample sets submitted to the Commission must be in SAMPLE no greater than 30' sample intervals from below the permafrost or from where samples are first caught and 10' sample intervals through target zones. Non-Conventional Please note the following special condition of this permit: Well production or production testing of coal bed methane is not allowed for (name of well) until after (Company Name) has designed and implemented a water well testing program to provide baseline data on water quality and quantity. (Company Name) must contact the Commission to obtain advance approval of such water well testing program. Rev:9/09/2011 0 a 0 r0- -0 c o 0 .0 3 0 I T I 0 cn s o cn 'a 3 In xt r 3G) 1 CD 0 0 ; r 3. o N) IJ 3 N y NO m a.c4. o0 N0 o D o c XI ° O CD O m 0 CD - m -i .• N N N 0) 0) 0) 0) CO 0) CO 0.) 0) Ca) N) N) N) N) IV N) N N N) N) . . O 0) V 0) U1 A 0) N) -, --. 0 n O 0) -I 0) (CT A 0) N) 0 CO CO -) () Cr A 0) N) -� 0 CO CO CA 01 A 0) N — 0 v "O m 0 O CO (J) 0 -0 K ( o -,* 0 co m > -. > 0 0 0 0 O) 0 I) D * C) v TI 0 0 =',, cn * * g C r -0 Z ,°< C) 0 CD CD a) co CD p- 0 0 � ' m 0 a vn m = mCD= m am com m ° v 3 o° 0 53' ro ° v i ° -° o = m CD w FP • ° 0 ° mm (n ° co Dom . 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